TX: Transmitter charging indicator RX: Receiver charging indicator To transmitter charging jack

Receiver Ni-Cd battery

We recommend charging the batteries with the charger supplied with your system. Note that the use of a fast charger may damage the batteries by overheating and dramatically reduce their lifetime.
You should fully discharge your system's Ni-Cd batteries periodically to prevent a condition called memory. For example, if you only make two flights each session, or you regularly use only a small amount of the batteries' capacity , the memory effect can reduce the actual capacity even if the battery is fully charged. You can cycle your batteries with a commercial cycling unit*, or by leaving the system on and exercising the servos by moving the transmitter sticks until the transmitter shuts itself off. Cycling should be done every four to eight weeks, even during the winter or periods of long storage. Keep track of the batteries' capacity during cycling; if there is a noticeable change, you may need to replace the batteries. *Note that your 7C transmitter system is protected from accidental reverse polarity, power surges and other electrical damage by a diode. The transmitter battery must be removed from the system to cycle. The battery easily unplugs from the battery compartment and has a standard J-plug for easy cycling.
DO NOT attempt to charge your 8-cell transmitter pack on the 4-cell receiver plug of the wall charger!
Adjusting the length of the non-slip control sticks You may change the length of the control sticks to make your transmitter more comfortable to hold and operate. To lengthen or shorten your transmitters sticks, first unlock the stick tip by holding locking piece B and turning stick tip A counterclockwise. Next, move both pieces up or down (to lengthen or shorten). When the length feels comfortable, lock the position by turning locking piece B counterclockwise, while holding piece A.

Stick tip A

Locking piece B
Stick lever tension adjustment

Aileron Elevator

Rudder
Mode 2 transmitter with rear cover removed.
You may adjust the tension of your sticks to provide the feel that you prefer for flying. To adjust your springs, youll have to remove the rear case of the transmitter. First, remove the battery cover on the rear of the transmitter. Next, unplug the battery wire and remove the battery from the transmitter. Next, using a screwdriver, remove the four screws that hold the transmitters rear cover in position, and put them in a safe place. Gently ease off the transmitters rear cover. Now you'll see the view shown in the figure above. Using a small Phillips screwdriver, rotate the adjusting screw for each stick for the desired spring tension. The tension increases when the adjusting screw is turned clockwise. When you are satisfied with the spring tensions, reattach the transmitter's rear cover. Check that the upper printed circuit board is on its locating pins. When the cover is properly in place, reinstall and tighten the four screws. Reinstall the battery cover. Adjusting Display Contrast To adjust the display contrast, from the home menu press and hold the End button. Turn the dial while still holding End button: clockwise to brighten counterclockwise to darken the display Let go off the dial and the button. Changing Modes: Hold down the Mode and End buttons while turning on the transmitter. The screen reads "STK-MD". Change this to the correct mode. Note that this will NOT change the throttle and elevator rachets, etc. Those are mechanical changes that must be done by a service center.

Link Procedure Each transmitter has an individually assigned, unique ID code. In order to start operation, the receiver must be linked with the ID code of the transmitter with which it is being paired. Once the link is made, the ID code is stored in the receiver and no further linking is necessary unless the receiver is to be used with another transmitter. When you purchase another R617FS, this procedure is necessary; otherwise the receiver will not work. 1. Place the transmitter and the receiver close to each other within one (1) meter 2. Turn on the transmitter. 3. Check the LED that is placed on the back side of the transmitter to see if the RF signal is active. When the green LED is ON solid, the RF signal is being sent. 4. Turn on the receiver. 5. Press down the "Easy Link(ID SET)" switch for more than one second, and release the switch. The receiver starts the linking operation. 6. When the linking is complete, the LED in the receiver will change to solid green. Please con m that the servos will now operate by your transmitter. Please refer to the table below for the LED status of the receiver's condition.
No signal reception Receiving signals Receiving signals, but ID is unmatched. Unrecoverable failure (EEPROM, etc.) Red : On Green: On Green: Blink Red and Green turn on alternately.
TRANSMITTER DISPLAYS & BUTTONS When you first turn on your transmitter, a confirmation double beep sounds, and the screen shown below appears. Before flying, or even starting the engine, be sure that the model type and name appearing on the display matches the model that you are about to fly! If you are in the wrong model memory, servos may be reversed, and travels and trims will be wrong, leading to an immediate crash. Edit buttons and Start-up Screen (appears when system is first turned on):
Throttle trim display Model type Model number Model name Elevator trim display

Mode key

End key

Rudder trim display

Aileron trim display Select keys Battery voltage
MODE/PAGE BUTTON: (key) Press and hold MODE BUTTON for one second to open programming menus. Press MODE BUTTON to switch between BASIC and ADVANCE menus. HELI only: Press MODE BUTTON to scroll between conditions in certain functions.

With digital trims you don't shut the engine off with THROTTLE TRIM. Let's set up throttle cut (THR-CUT) now. GOALS of EXAMPLE STEPS INPUTS for EXAMPLE THR-CUT shuts the engine off completely From the BASICmenu, choose THR-CUT. for 1 second. (If ADVANCE, with the flip of a switch. P. 32. to THR-CUT. to choose THR-CUT. Activate, assign SWITCH and adjust. Close the function. to OFF. to SW.

again.)

to desired switch and position. (default: A and down position) to RATE. A to down position.
THROTTLE STICK. until throttle barrel closes completely. Set up dual/triple rates and exponential (D/R,EXP). P. 33. (Note that in the middle of the screen is the name of the channel AND the switch position you are adjusting. Two or even THREE rates may be set per channel by simply choosing the desired switch and programming percentages with the switch in each of its 2 or 3 positions.) From the BASIC menu, choose D/R,EXP. to D/R,EXP. to choose D/R,EXP.
Choose the desired control, and set the first (Ex: high) rate throws and exponential.
A to up position. to CH>. to choose CH>2 (elevator). to D/R. to set desired percentage. to EXP. to set desired percentage.
Set the second (low) rate throws and exponential.
A to down position. to D/R. Repeat steps above to set low rate. to SW. to G or E.
Optional: change dual rate switch assignment. Ex: elevator to switch G (7CA) or E (7CH) with 3 positions.
G or E to center position. Repeat steps above to set 3rd rate.

Where next?

(Other functions you may wish to set up for your model.) TRAINER p. 37. Multiple wing and/or tail servos: see wing types and tail types, p. 41, 44. Elevator-to-flap, flap-to-elevator , and other programmable mixes p. 48. Retractable Gear, Flaps on a Switch, Smoke systems, kill switches, auxiliary channel (ch5 and ch7) setups. p. 30.
A LOOK AT THE RADIO'S FUNCTIONS STEP BY STEP MODEL submenu: includes three functions that manage model memory: MODEL SELECT, MODEL COPY and MODEL NAME. Since these functions are all related, and are all basic features used with most models, they are together in the MODEL submenu of the BASIC menu.
MODEL SELECT: This function selects which of the 10 model memories in the transmitter to set up or fly. (Each model memory may be of a different model type from the other memories.)

GOAL: Select Model #3.

STEPS: INPUTS: Open BASIC menu, then open MODEL for 1 second. (If ADVANCE, submenu. if required to MODEL. NOTE: This is one of several functions for which the radio requires Choose Model #3. to 3. confirmation to make a change. Confirm your change. for 1 second. sure? displays. Close.

NAME the model: see p. 27. Change MODELTYPE (aircraft, heli): see p. 28. Utilize servo REVERSE: see p. 30. Adjust END POINTs: see p. 31. Set up TH-CUT for throttle management: see p. 32.
MODEL COPY: copies the current model data into another model memory in the transmitter. The number of the model memory you are copying from and into is displayed.
Notes: Any data in the model copied to will be written over and lost, including name and type. It cannot be recovered.
Examples: Start a new model that is similar to one you have already programmed. Copy the current model data into another model memory as a backup or before experimenting with new settings. Edit a copy of your models data to fly the model in different conditions (i.e. Helicopter using heavier weight blades; airplane model at extreme altitudes).
GOAL of EXAMPLE: Copy model 3 into model 5. NOTE: This is one of several functions for which the radio requires confirmation to make a change.
STEPS: Open the BASIC menu, then open MODEL submenu. Confirm you are currently using the proper model memory. (Ex: 3) Go to MODEL COPY and choose the model to copy into. (Ex: 5) Confirm your change.
INPUTS: for 1 second. (If ADVANCE, to MODEL. If SELECT does not indicate 3, use MODEL SELECT, p. 25. to 5. for 1 second. sure? displays. *
Close. Where next? SELECT the copy you just made: see p. 25. Rename it (it is currently named exactly the same as the model copied): see p. 27.
*Radio shows progress on screen as the model memory is being copied. Note that if the power switch is turned off prior to completion, the data will not be copied.
MODEL NAME: assigns a name to the current model memory. By giving each model a name that is immediately recognizable, you can easily comfirm the correct model, and minimize the chance of flying the wrong model memory which could lead to a crash.
Adjustability and values: Up to 6 characters long. Each character may be a letter, number, blank, or a symbol. The default names assigned by the factory are in MDL-xx format (MDL-01 for first model memory, etc.)
NOTE: When you COPY one model memory over another, everything is copied, including the model's name. Similarly, if you change MODEL TYPE or do a MODEL RESET, the entire memory is reset, including MODEL NAME. So the first thing you will want to do after you COPY a model, change its type, or start from scratch, is rename the new copy to avoid confusion.
GOAL of EXAMPLE: Name model 3 "CAP-01" (where the underline represents a blank space.)
STEPS: Open MODEL submenu.
INPUTS: for 1 second. (If ADVANCE, to MODEL.
Confirm you are currently using the proper model memory. (Ex: 3) Go to NAME and change the first character. (Ex: M to C) Choose the next character to change. Repeat the prior steps to complete naming the model. Close. Where next?

If SELECT does not indicate 3, perform MODEL SELECT, p. 25. to C.

to A Repeat.

Change the MODEL TYPE to helicopter: see p. 28. Utilize servo REVERSE : see p. 30. Adjust servo travel with END POINT : see p. 31. Set up dual/triple rates and exponential (D/R,EXP): see p. 33.
PARAMETER submenu: sets those parameters you would likely set once, and then not disturb again. Once you have selected the correct model you wish to work with, the next step is setting up the proper parameters for this specific model:
What is the model's type? Assign the desired SW to CH5 and CH7.
First it is important to clear out any old settings in the memory from prior use, using the MODEL RESET. MODEL RESET: completely resets all data in the individual model you have currently selected. Don't worry - there is no way you can accidentally delete all models in your radio with this function. Only a service center can completely reset your radio's entire memory at once. To delete each model in your radio's memory (for example when selling), you must SELECT each model, reset that memory, then go SELECT the next memory, etc. Note that when you COPY one model memory into another or change the model's type, you need not delete all existing data first by using this function. COPY completely overwrites anything in the existing model memory, including MODEL NAME. The MODEL TYPE function overwrites all data except name.
GOAL of EXAMPLE: Reset model memory 1.
STEPS: Confirm you are currently using the proper model memory. (Ex: 1) Open PARAMETER submenu.
NOTE: This is one of several functions for which the radio requires confirmation to make a change.
INPUTS: On home screen, check model name and number on top left and right. If it is not correct, use MODEL SELECT, p. 25. for 1 second. (If ADVANCE, again.) to 3rd page of menu. to PARAMETER.
Reset the Memory. Confirm the change. Close. Where next?
for one second. sure? displays. *
Now that the memory is reset, name has returned to the default (Ex: MDL-01). NAME the model: p. 27. COPY a different model into this memory: p. 25. SELECT a different model to edit or delete: p. 25. Change the MODEL TYPE to helicopter: see p. 28. Utilize servo REVERSE: see p. 30. Adjust servo travel with END POINT: see p. 31. Set up dual/triple rates and exponential (D/R,EXP): see p. 33.
*Radio shows progress on screen as the model memory is being reset. Note that if the power switch is turned off prior to completion, the data will not be reset.

Adjustability: Defaults : The 3 programmable mixes default to aileron to rudder mixes. PROG.MIX1-3 aileron-to-rudder for coordinated turns
Channels available to mix: All three mixes may be changed to use any combination of CH1-7. Offset may also be set to the master channels. (see below.)
Master: The controlling channel. The channel whose movement is followed by the slave channel. Another channel: Most mixes follow a control channel. (Ex: rudder-to-ailerons, 25%, no switch, corrects roll coupling.) MASTER SLAVE SWITCH & POSITION RATE OFFSET RUDD AILE NULL (--) 25% center(default) Offset as master: To create an OFFSETmix, set the master as OFST. (Ex: move flap 20% of their total throw when SWITCH A is in down position.) MASTER SLAVE SWITCH & POSITION RATE OFST CH6 A DOWN 20%
Slave: The controlled channel. The channel that is moved automatically in response to the movement of the master channel. The second channel in a mixs name (i.e. aileron-to-rudder). On/off choices: SWITCH: Any of the positions of any of the 5 switches may be used to activate a mix. Up&Cntr, Cntr&Dn options allow the mix to be ON in 2 of the 3 positions of a 3-position SWITCH. NULL (--): No SWITCH can turn this mix OFF. This mix is active at all times. Rate: the percentage of the slave's range it will move upon maximum input from the master channel. Ex: RUDDERAILERON mix, 50%. Ail range=1". When rudder is moved full right, ailerons move 1/2". MASTER SLAVE SWITCH & POSITION RATE OFFSET RUDD AILE NULL (--) 50% center(default) Offset: Offsets the slave's center relative to the master. Ex: Smoke valve opens wider per throttle servo position when smoke SWITCH is ON. Smoke servo's neutral is moved down from THROTTLE STICK center to the bottom. MASTER SLAVE SWITCH & POSITION RATE OFFSET THRO CH7 E DOWN 0%(Hi) half throttle(default) 100%(Lo) *Assign the CH7 switch to NULL(--). See p.28.
GOAL of EXAMPLE: Set up a Smoke system: ON when SWITCH E is in the down position. *Adjust the CH7 switch to NULL prior to this setting. See page. 28.
STEPS: Open an unused programmable mix. (Ex: use PROG.MIX3.) Activate the function. Choose master and slave channels.
INPUTS: for 1 second.(If basic, to PROG.MIX3.

to CH3. to CH7.

Assign SWITCH and position. (Ex: E DOWN.)

to E DOWN.

Set rates. (Ex: Lo=100%, Hi=0%.)
THROTTLE STICK past center.

to +100%.

to 0%.

Set OFFSET, if needed.

Stick to desired point.

for 1 second to set.

Close menu. Where next? View numerous additional mix setups: www.futaba-rc.com\faq\faq-7c.html.
Other Examples: RUD-THR(HELI) mix: When right rudder is applied, additional torque is needed from the motor to drive the tail left. Left rudder requires less torque. A rudder-throttle mix, positive on the left side and negative on the right, adjusts for this. RUD-ELEV(ACRO) mix: Compensate for pitching up or down when rudder is applied. ELEV-PIT(HELI) mix: Compensate for the loss of lift when tilting the model.

Special Additions, Functions, And Added Equipment Commonly Used On Powered Aircraft Gyros: Just as torque rotates an aircraft on the runway during take-off, helicopters struggle with torque twisting the model every time throttle is applied. For many years gyroscopes have been used on model helicopters to control this. In competition aerobatics and scale aircraft competition alike, the usefulness of gyros has recently come to light. For in-depth information on gyro types, please see p. 73. For aerobatics, gyros on rudder and elevator fix over-rotation of snaps and spins as well as tail wagging in stall turns. (Fut aba offers a twin-axis gyro, GYA-352, that controls two axis with a single gyro.) For 3D aerobatics (below stall speed, such as tor que rolls), heading-hold/AVCS gyros on rudder and elevator dramatically simplify these maneuvers. For scale models, gyros are frequently used to simplify take-offs and landings by keeping the model straight during throttle application. Always be careful if using a heading-hold/AVCS gyro, as it will correct any change in yaw that is not caused by movement of the rudder (like making a turn with just aileron and elevator). Typically, modelers use headinghold/AVCS settings only for specific maneuvers, such as take-offs and torque rolls, then switch to normal mode or OFF for the remainder of the flight to avoid this risk. While the 7C's ACRO programming does not offer gyro-specific programming, simply adjusting the END POINTs of the channel that is used to control the gyro' s gain will adjust the gyro's performance in flight. For details on gain and other gyro functions, please see the HELI GYRO programming, p. 73. Retracts: Retractable landing gear is often used on scale models for increased realism and on high performance models to decrease drag. The gear servo is typically plugged into CH5, which defaults to a 2-position switch for simplicity. Mechanical retracts require the use of a specialized non-proportional retract servo. Retract servos go from full travel one direction to full travel the other direction, then mechanically hold the gear into the locked position. A regular servo used for mechanical retracts will continue to draw full power the entire time, prematurely draining the battery and risking crash of your model. End point will not adjust a retract servo. Pneumatic (air driven) retracts use a standard servo to control an air valve which directs air into or out of the retract units, moving the gear up or down. Pneumatics are easier to install but require added maintenance of the air system. Gear Doors: Some scale models with retracts also have separate gear doors to cover the scale gear. For one example of how to operate the gear doors separately from the retracts, please visit our website: www.futaba-rc.com\faq\faq-7c.html. Smoke Systems: Many scale and aerobatic models use smoke systems to provide increased realism or a more impressive demonstration. There are many smoke systems available, with varying types of control. Most use a servo to increase/decrease the flow of smoke fluid into the specialized smoke muffler. The oil is heated in the muffler, creating smoke. It is a good practice to set up a "safety" that shuts off the smoke oil if the throttle is lowered below half-stick. For a detailed example of a smoke system setup, please visit our website: www.futaba-rc.com\faq\faq-7c.html. Kill Switches: For safety reasons, it is strongly recommended that an electronic kill switch be installed in all gasolinepowered aircraft. In case of any type of in-flight problem (such as prop failure, exhaust vibrating off, throttle servo failure, radio interference), the modeler can shut the engine off quickly and safely in flight. Additionally, FailSafe (F/S ) settings are recommended to shut the engine off in case of sufficient interference to trigger the PCM FailSafe settings. Lastly, an electronic kill switch set to "off" prior to the aircraft's power being shut off adds an additional safety should someone accidentally turn on the mechanical kill switch on the exterior of the model. Bomb Drops, Paratroopers, and other Released Items: Many sport and scale models include one or more of these fun add-ons. Typically, all are controlled by a simple micro-switch plugged into CH7. The switch is assigned in PARAMETER.

HELICOPTER MODEL FUNCTIONS Please note that nearly all of the BASIC menu functions are the same for airplane (ACRO setup) and helicopter (H-1/H-2/HR3/HN3/H-3/HE3) setups. The features that are identical refer back to the ACRO chapter. The Helicopter BASIC menu includes the normal conditions throttle and collective pitch curves and revo. mixing. (idle-ups and throttle hold are advanced features and are in the ADVANCE menu). Helicopter Setup Example.p. 58. HELI (H-1/H-2/HR3/HN3/H-3/HE3) BASIC MENU MODEL SUBMENU: MODEL SELECT.See ACRO, p. 25. MODEL COPY.See ACRO, p. 26. MODEL NAME.See ACRO, p. 27. PARAMETER SUBMENU: MODEL RESET.See ACRO, p. 28. MODEL TYPE: Information specific to HELI models, including CCPM.p. 61. CH5, CH7 (Auxiliary Channel assignment).See ACRO, p. 30. REVERSE.See ACRO, p. 30. SWASH AFR(swashplate control direction and travel correction) (not in H-1).p. 63. END POINT.See ACRO, p. 31. Setting Up the NORMAL Condition: (TH-CV/NOR, PI-CV/NOR, REVO./NOR).p. 65. THR-CUT(specialized settings for helicopter specific models).p. 66. D/R,EXP (Specialized settings for helicopter specific models).See ACRO, p. 33. TIMER.See ACRO, p. 36. TRAINER.See ACRO, p. 37. TRIM SUBMENU: RESET.See ACRO, p. 38. STEP.See ACRO, p. 38. SUB-TRIM.See ACRO, p. 39. F/S FAILSAFE (loss of clean signal and low receiver battery) SUBMENU (Throttle channel only): F/S.See ACRO, p. 40. Battery Fail Safe (F/S).See ACRO, p. 40. HELI (H-1/H-2/HR3/HN3/H-3/HE3) ADVANCE MENU THROTTLE HOLD.p. 67. THR-CURVE,PIT-CURVE, and REVO. MIX.p. 68. IDLE-UPS.p. 69. TRIMS/OFFSET.p. 70. HOVERING SETUPS.p. 71. GYROS and GOVERNORS.p. 73. Mixes. See ACRO, p. 48. SWASH-TH. p. 72. PROG.MIX1-3(Linear Programmable mixes, default to AIL-RUD). See ACRO, p. 53.
GETTING STARTED WITH A BASIC HELICOPTER This guideline is intended to help you set up a basic ( H-1 ) heli, to get acquainted with the radio, to give you a jump start on using your new radio, and to give you some ideas and direction on how to do even more with this powerful system than you may have already considered. It follows our basic format of all programming pages: a big picture overview of what we're trying to accomplish; a "by name" description of the steps to help acquaint you with the radio; and then a step-bystep instruction to leave out the mystery and challenge of setting up your model. Briefly, the typical helicopter's controls are as follows: Aileron: changes cyclic lateral (roll). Rolls the helicopter. Tilts the swashplate to the left or right. CH1. Elevator: changes cyclic pitch. Changes the helicopter's angle of attack (nose up or nose down). Tilts the entire swashplate fore and aft. CH2. Rudder: changes the angle of the tail rotor. Yaws the helicopter left or right. CH4. Collective Pitch: adjusts main rotor collective [angle of the paddles], changing the main blades' pitch. Increased collective pitch (with throttle) causes the helicopter to rise. Moves in conjunction with throttle on the THROTTLE STICK. CH6. Throttle: opens/closes carburetor. Moves in conjunction with collective pitch on the THROTTLE STICK. CH3. REVO: mix that adds rudder in conjunction with pitch. This helps compensate for rotation of the helicopter caused by the increased engine torque. (Never use revo. mixing with a heading-hold/AVCS gyro which is in headinghold/AVCS mode. However, revo. mixing is still used when a heading-hold/AVCS gyro is in normal mode.) For additional details, see that function's section in this manual. The page numbers are indicated in the first column for you.

HR3 Swash Type AILERON STICK.
CHECKING FOR PROPER MOTION ON AN HR3 SWASHPLATE PROPER MOTION WRONG MOTION HOW TO FIX Swashplate tilts right. Swashplate tilts left. Back of Swashplate moves up. Back of Swashplate moves down. Swashplate moves the opposite. Entire swashplate moves up. Blades rotated right. Swashplate lowers. Reverse AIL setting in SWASH to -50%. Ch6 servo moves incorrectly; REVERSE. Ch1 servo moves incorrectly; REVERSE. Reverse ELE setting in SWASH. (ex: +50 to -50 ) Ch2 servo moves incorrectly; REVERSE. REVERSE the rudder servo. Reverse PIT setting in SWASH.

ELEVATOR STICK.

Front of swash plate moves down; back of swashplate moves up. The leading edges of tail blades rotate left. Entire Swashplate lifts.
RUDDER STICK. THROTTLE STICK.
GOAL of EXAMPLE: Adjust the travel of the collective pitch from +50% to -23% , reversing the travel of all 3 servos and decreasing their travel in collective pitch only, on an HR3 MODEL TYPE. Where next?
STEPS: Open SWASH AFR function.
INPUTS: for 1 second.(If ADVANCE, to SWASH
Adjust PIT travel to -23.

to -23%.

Close the menu. Confirm the swashplate is level at 0 travel. Adjust arms if needed. Apply full collective and check that the swashplate remained level. If not, adjust servo's travels as needed to correct. END POINT: see p. 31. Set up the normal condition: (TH-CV/NOR, PI-CV/NOR, REVO./NOR): see p. 65. Set up D/R,EXP: see p. 33.
Setting up the Normal Flight Condition: The Normal flight condition is typically utilized for hovering. The throttle and collective pitch curves are adjusted to provide consistent engine RPM despite the increase/decrease in collective pitch of the blades. This keeps the engine from "bogging down" under excessive load (like trying to accelerate a car on a steep hill in 5th gear) or excessive RPM under insufficient load (like flooring the throttle while in neutral), risking engine damage. As the 2 curves and revo. mixing are all interrelated, we will discuss all three first, then complete a sample setup. Note that the normal throttle and pitch curves and revo mix are all available in the BASIC menu for simplicity. These may also be updated later in the ADVANCE menu with the settings for the other 3 conditions [idle-up 1 (IDL1), idle-up 2 (IDL2) and throttle hold (HOLD)]. Note: The throttle and pitch curves for the normal condition are always on. They cannot be inhibited. The other three conditions are activated with their throttle curves or throttle hold. For idle-ups, see p. 69. For throttle hold, see p. 67.
TH-CV/NOR: Inputs the normal (NORM) throttle curve, which is usually not a linear response to THROTTLE STICK motion. Adjusting point 3 of the curve adjusts the engine's RPM at the THROTTLE STICK midpoint - the desired position for hovering. The other 4 points are then adjusted to create the desired idle and maximum engine speed, and a smooth transition in-between. For more on throttle curves, see p. 69. PI-CV/NOR: Inputs the normal (NORM) collective pitch curve, the collective pitch curve for flight near hover. The normal collective pitch curve is adjusted to match the throttle curve, providing the best vertical performance at a constant engine speed, with a starting curve of -4 base, +5 neutral, and +8 to +10 degrees of blade pitch maximum*. You can program the response over a 5-point curve for the best collective pitch angle relative to THROTTLE STICK movement. For more on collective pitch curves, see p. 69. REVO.: Mixes collective pitch commands to the rudder (a PITCH-RUDDER mix) to suppress the torque generated by changes in the main rotor's collective pitch angle, keeping the model from yawing when throttle is applied. REVO. is extremely helpful in "taming the tail" of models not using heading-hold/AVCS gyros. Never use revo. mixing in conjunction with a heading-hold/AVCS gyro while in heading-hold/AVCS mode. Revo. mixing is still used with these gyros while set to the normal mode. For details on revo, including default points for clockwise and counterclockwise rotating rotors, see p. 69.

Note: Be sure to add the step of setting a trigger point by cursoring to THR, then putting the THROTTLE STICK in the desired position and pressing and holding the dial for one second. Notice that this function cannot be reversed to trigger only above the stick point.
HELI-SPECIFIC ADVANCE MENU FUNCTIONS THR-HOLD: This function holds the engine in the idling position and disengages it from the THROTTLE STICK when SWITCH E (7CH) or G (7CA) is moved. It is commonly used to practice auto-rotation.
Prior to setting up THR-HOLD, hook up the throttle linkage so that the carburetor is opened fully at high throttle, then use the digital trim to adjust the engine idle position. To have THR- HOLD maintain idle, move the THROTTLE STICK to the idle position, then move the hold SWITCH on and off and keep changing the offset value until the servo does not move. To lower the engine idle speed, or if you want to shut off, input a more negative number. Adjustability: Idling position: Range of -50% to +50% centered about the throttle idle position to get the desired engine RPM. Rudder offset: Offsets the tail rotor pitch. Keeps the fuselage from rotating in throttle hold. Switch assignment: Assigned to SWITCH G (7CA) or E (7CH) down. Not adjustable. Throttle curve: Since the throttle is moved to a single preset position, no curve is available for THR-HOLD. Collective pitch curve: Independent curve, typically adjusted to create a blade pitch range of -4 to +6 to +12, is automatically activated with THR-HOLD. Revo. mix: Since revo. mix adjusts for torque from the engine, no revo. mix is available for THR-HOLD. Priority: The throttle hold function has priority over idle-up. Be sure that the throttle hold and idle-up SWITCHES are in the desired positions before trying to start the engine. (We recommend starting your engine in throttle hold for safety reasons.)
GOAL of EXAMPLE: Set up throttle hold.
STEPS: Open THR-HOLD function.
INPUTS: for 1 second.(If basic, to THR-HOLD.
Determine desired throttle position by idling engine, turn on THR-HOLD, and adjust percentage as required to reach the desired running point.
Activate the function. Set desired engine position. Optional: set up a rudder offset. Close. to OFF.
to OFF. to desired percent. to desired offset.
PIT-CURVE for THR-HOLD: see p. 68. GYRO setup: see p. 73. Setting up the Idle-Ups: Throttle and Collective pitch Curves and Revo. Mixing (TH-CURVE, PIT-CURVE, REVO. MIXING) for idle-ups: see p. 69. D/R,EXP: see p. 33.

GOAL of EXAMPLE: Fine-tune hovering with the hovering adjustments. Remember these affect only the hovering (normal) condition.
STEPS: Open the HOV-PIT function.
INPUTS: for 1 second.(If basic, to HOV-PIT.
Adjust throttle and collective pitch curves until model hovers nicely. In flight, adjust collective pitch and Change VR to OFF. throttle curves near hover point Close. independently with HOV-THR and HOVPIT knobs. Open the HOV-THR function. Assign the dial VR. Store new settings after flight.
Store the current dial settings prior to setting HOV-THR function.
for one second to store. or VR to center. to OFF.

to HOV-THR. to ON.

In flight, adjust throttle curve near hover point with the knob. Store the current dial settings prior to selecting another model. for one second to store. or VR to center.
Close. THR-HOLD: see p. 67. Setting up the Idle-Ups: Throttle and Collective pitch Curves and Revo. Mixing (TH-CURVE, PIT-CURVE, REVO. MIXING for idle-ups: see p. 69. D/R,EXP: see p. 33.
Throttle mixing (SWASH-THR): SWASH-THR mixing corrects slowing of engine speed caused by swash plate operation due to aileron or elevator operation. Engine speed can be increased independently at aileron or elevator operation in each flight condition (normal/idle-up 1/idle-up 2.)
Adjustability: Rate: 0% to 100%, with a default of 0%. SWASH-THR does not affect the throttle servo when the throttle control stick is all the way up or the idle position without affecting throttle settimgs.
GOAL of EXAMPLE: Activate SWASH-THR mixing. Adjust mixing amount (AIL-N) to 10%.
STEPS: Open the SWASH-THR function.
INPUTS: for 1 second.(If basic,
to SWASH-THR. Activate the function. Adjust the mixing amount as needed. (Ex: 10%)

to 10%.

Close menu.
View additional setups on the internet: www.futaba-rc.com\faq\faq-7c.html.
GYROS and GOVERNOR: Using electronics to take some of the complexity out of setups and flight. What is a gyro? A gyroscope is an electronic unit that senses motion and corrects for it. For example, if the wind blows your helicopters tail to the left, a gyro will sense that motion (and confirm that no input was given) and will correct for it. How does it help in helicopter setup? A good gyro will totally eliminate the need for revo. mixing. The gyro will sense and correct the unwanted motion for you, so you don' t have to spend time to get a complex curve operating properly. Gyro sensor kinds: There are many different kinds of gyros. Early gyros were mechanical, with a spinning drum similar to a child' s gyroscope toy. The next generation utilized a special type of crystal, called piezoelectric, which sensed the motion and provided an electrical pulse. The finest gyros at the time of this writing are SMM technology. These silicone micro machines, or computer chips, sense the motion. SMM is far more accurate and less susceptible to inaccuracies caused by temperature changes, etc. Types of gyro responses: Normal: sense motion and dampen it (if the gyro rotates off course for 2 seconds, it corrects for 2 seconds). Heading-hold/AVCS: calculate the angle of rotation (by tracking the time/rate of change) and then provide correction until the same rotation is achieved. Stick priority: a feature on most high-end gyros. The more input given on the channel the gyro controls, the less sensitive the gain is automatically. This way, if you give a large input for a stall turn, for example, the gyro turns itself off and does not fight the stall turn. As you ease off the rudder, the gain increases again, minimizing tail wag and keeping the model straight. (If your gyro does not include stick priority, you can manually create it. Please see www.futaba-rc.com\faq\faq-7c.html.) Choosing the right gyro for your skills, your helicopter, and your budget: Mechanical: some are still available. They are very challenging to set up and not as reliable as piezo or SMM. Non-Heading-Hold Piezo: these are now inexpensive gyros that are reliable and easy to set up. Some have dual rates and remote gain control to adjust sensitivity in flight. Lack heading-hold capabilities for precision flying. Heading-Hold Piezo: Until recently, the cream of the crop. Expensive, and more complex to set up. Adds GPS-like heading recognition. Exhibits minor difficulties with temperature drift (position setting varying with unit's temperature). Heading-Hold SMM: 21st Century gyro technology. Computer chip technology. Expensive, easier set up, higher durability. Significant decrease in temperature sensitivity. Many include frame rate settings to allow faster response when using specialized digital servos. Examples: GY401: Simpler set up. Ideal for learning aerobatics through 3D. GY502: Better centering than 401 for more advanced aerobatics. Ideal through Class III competition. GY601: Exceptional center. Extremely fast response time. Requires specialized servo. GYRO: Simplifies adjusting/selecting the gyro sensitivity, and can provide more than 2 gyro gain settings. (The higher the gain, the more correction the gyro provides and the "softer" or less responsive the helicopter feels.) This function makes the best possible use of the inflight adjustable gain of most gyros. Adjustability: Plug the gyro's sensitivity adjustment to channel 5 of the receiver. (not assignable) STD and AVCS/Heading-hold (GY) setup types available to simplify adjustments for AVCS/Heading-hold gyros. Full switch assignability or may select Cond. option. Each gyro setting may be set from 0 to 100% gain. Dual mode gyros (heading-hold/AVCS and normal) are easily triggered to each mode by changing the gyro settings sign. Larger percentages indicate more gain, or gyro responsiveness. Tail wagging or shaking indicates excessive gain settings. Turn down gyro setting until wag stops.

The relationship of the governor speed setting rS1~rS3 and the switch positions conforms to the table above. In throttle hold, always check that the governor is off. If the speed value rises in throttle hold, reverse the DIR setting from +LIMIT to -LIMIT or vice versa.
GOAL of EXAMPLE: Switch between the governor settings automatically when changing conditions.
STEPS: Open and activate the GOVERNOR function.
INPUTS: for 1 second.(If basic, to GOVERNOR. to ON.
Consider setting the battery FailSafe settings and other helpful functions on the GV-1 itself.
Optional: change switch assignment to select governor settings. Ex: select switch that selects the conditions. Adjust governor speed settings per switch position or condition as needed. (Ex: defaults are fine.) Allows head speed adjustment from transmitter. Close the function. GYRO: see p. 73. Adjust FailSafe (F/S ) settings (p. 40).
to SW. to E. to each SWITCH position. or as needed.
to next SWITCH position. Repeat.
Adjust elevator/aileron response to fit your flying style: see D/R,EXP and END POINT/SWASH AFR: p. 33, 31, 63.
GLOSSARY 3D: Common name for certain types of aerobatic maneuvers. Aircraft: flying below the models stall speed, such as torque rolls. Helicopters: combining 2 or more maneuvers, such as rolling loop. 4.8V: 4.8 volt battery pack, made of 4 Ni-Cd 1.2V cells. See Accessories. 5-cell: 6.0 volt battery pack, made of 4 alkaline cells or 5 Ni-Cd cells. See Accessories. 6V (6Volt): battery pack, made of 4 alkaline cells or 5 Ni-Cd cells. See Accessories.
Accessories: additional optional items which may be used with your 7C.10 ACRO: Model type designed for use with powered aircraft. Selected in the PARA submenu under TYPE ACT. Active: Make a feature able to be utilized. Opposite of INH. Only visible in certain features. Adjustable Function Rate: see SWASH AFR. ADVANCE menus: Specific menus for each model type which allow the modeler to access and program the radio's more advanced features. AFR: Adjustable function rate. Used only in HELI model types with CCPM heads. See SWASH AFR. AIL-2: Second aileron servo assignment. See Twin aileron servos. Aileron: Surface that controls the roll of the model. Also called cyclic roll on a helicopter. Aileron-to-flap mixing: Mixing used to create full-span aileron action. Not a preprogrammed mix. See Programmable mix. Aileron-to-rudder mix: Mixing that automatically creates a "coordinated turn". Not a preprogrammed mix. See Programmable mix. Aileron Differential: Decreased down aileron travel when compared to up aileron travel. Minimizes "dragging" the low wing and creates more axial rolls. See Twin aileron servos.42 AILEVATOR: (ACRO) Twin elevator servos plugged into separate channels, used to control elevator with the option to also act as ailerons in conjunction with the primary ailerons. 45 AIRBRAKE: (ACRO) Combines elevator and flap to suddenly slow the model for spot landings. May be triggered by THROTTLE STICK POSITION.52 AMA: Academy of Model Aeronautics. Non-profit or ganization governing model aircraft flight in the US.5 AST: Adjustable Servo Travel. A specific type of end point adjustment. See END POINT. ATL: Adjustable Travel Limited. Standard type of trim used for throttle, where the trim is effective only in the idle portion of the THROTTLE STICK POSITION. Normal trims affect the entire travel of the servo (ex: elevator trims), but ATL trims only the low end of the throttle movement, allowing throttle idle adjustments that don' t over-drive the servo at full throttle.30 ATV: Adjustable Travel Volume. Older, less clear terminology for end point adjustment. See END POINT. Autorotation: The ability of a helicopter to land safely without engine power, using the stored energy in the blade's rotation to produce lift for flaring.29

Range check or test: To test the transmitters control over the model at a specific distance as a precaution in checking its proper operation prior to flight.16 Rate: Amount of control given. Ex: see Programmable mix. RESET: To delete all data in the existing model only. User CAN NOT erase all data in the radio. Only service center can do so. Part of PARAMETER submenu.28 Retractable landing gear: Landing gear that is brought up into the model during flight.56 REVERSE: Servo reversing. Used to reverse the direction of a servo to ease installation and set up.30 Rudder-to-aileron mix: (ACRO ) Used to counteract undesirable roll (roll coupling) that happens with rudder input, especially in knife-edge. Gives proper aileron input to counteract roll coupling when rudder is applied. Not a preprogrammed mix. See Programmable mix. This is the default programming for one linear and one curve mix in ACRO. Rudder-to-elevator mix: Used to counteract undesirable pitch (pitch coupling) with rudder input, especially in knife edge flight. Not a preprogrammed mix. See Programmable mix. Rudder-to-throttle mix: (HELI) Adds throttle to counter the added load from increasing pitch of the tail blades, maintaining a constant head-speed with rudder. (This is a minor effect and is not critical in most helicopters.) Not a preprogrammed mix. See Programmable mix. Rx: Receiver
SELECT (CURSOR) BUTTONS: Controls used in various ways during programming.11 Select a model: see MODEL SELECT. Service Center.3 Servo reversing: see REVERSE. SET: To accept. Usually done by pressing and holding the dial when instructed. Slave: Channel that moves in response to the command of the master. See Programmable mix. Smoke system: Injects a specialized smoke oil into the hot exhaust to create air-show like smoke trails.56 SNAP ROLL: (ACRO) Combines rudder, elevator and aileron movement to cause the aircraft to snap or spin at the flip of a switch.47 Stick adjustments: Change stick tension and height.15 SUB-TRIM: Used to fine tune the center or neutral point of each servo. Allows full trim function from the trim sliders for flight trimming.39 SWASH AFR: (HELI,CCPM types only) Adjustment of the travel of all servos involved in the particular control's movement only during the movement of that control. Ex: reverse the direction of movement of collective pitch while not affecting the direction of movement of either cyclic control.63 Swashplate type: (HELI). Part of the model type selection process. Selects specific heli swashplate geometry, such as one of four available types of "CCPM.".61 SWASH-THR: (HELI, CCPM types only) Corrects slowing of engine speed caused by swash plate operation at aileron or elevator operation. See throttle mixing. 72 Switch programmability: MANY features are reassignable to a variety of switches, including simply moving an auxiliary control such as flaps from the stock dial to a switch or other location.

Advanced radio technology for precise, dependable control.
7-Channel Computer Radios
Digital precision. User-friendly programming.
Programming is easy with Dial n Key! Just rotate the dial to find the program you want and press it to open the program. Then, use the dial and cursor keys to set values.
You can easily access toggle switches without taking your thumbs off the sticks or your eyes off the model. Theyre fully proportional and can be assigned to nearly any function.

FUTJ70**

ake the most of your flying experience. Use the radio that provides the greatest precision, the easiest and fullest programmability, and the most room for future growthall at an affordable price. The Futaba 7C.
Information is easy to read on the large, 72x32 LCD screen. For further clarity, the contrast is adjustable.
In sophistication, it nearly equals Futabas best of the best 9C with basic menus for standard flight, advanced menus for stunt and 3D piloting, plus system options to suit the needs of virtually any System Rx modelermost with S3151 digital servos!
Available in FM or PCM versions, tailored for airplane, helicopter, or surface use. S3151 digital servos (included with all except FUTJ69**) offer rapid response, precise positioning and maximum holding power. Innovative, proven Dial n Key system offers the ultimate in userfriendly programming. Unparalleled combination of reliability, flexibility and features makes this the best value in an intermediate-level aircraft radio system.
7CAF FUTJ69** 7CAF FUTJ70** 7CAP FUTJ71** 7CAP FUTJ72** 7CHF FUTJ73** 7CHP FUTJ74**
(Qty.) Sx Tx NiCd Rx NiCd R127DF (4) S3004 600mAh 600mAh
Bands (MHz) Modulation 72 FM 50, 72 50, 50, 72 FM PCM FM FM PCM
R127DF (4) S3151 600mAh 600mAh R138DP (4) S3151 600mAh 600mAh R138DP (2) S3151 600mAh 600mAh R127DF (4) S3151 600mAh 600mAh

Includes:

R138DP (4) S3151 600mAh 1000mAh 50, 72
For more information, and the location of the dealer nearest you, log on to (2 or 4) Servos Receiver (FM or PCM) Tx and Rx NiCd batteries and charger

www.futaba-rc.com

or call 1-800-682-8948 and mention code # 99N27.
Choose the 7C for unmatched versatility and value!
Three easy-to-use menus match the needs of any flier.

Airplane Basic Menu

Model Select (10 Model Memory) Model Name (6-Characters) Dual Rate/Expo Aileron/Elevator/Rudder Dual Rate/Expo Throttle Expo Assignable to any switch (Dual or Triple Rates) EPA (End Point Adjustment) Sub Trim Reverse Trim Throttle Cut Fail Safe PCM Mode only Parameters Reset Type- Acro, 6 Swash plate styles Modulation (PCM/PPM, FM) Timer Up or Down Up to 99 minutes 59 seconds Trainer

Airplane Advanced Menu

3 Programmable Mixings Flaperon Flap Trim Air Brake Elevator to Flap Flap to Elevator V-Tail Elevon Aileron to Rudder Snap

Helicopter Basic Menu

Model Select (10 Model Memory) Model Name (6-Characters) Dual Rate/Exponential End Point Adjustment (7-Chanells) Sub Trim (7-Chanells) Servo Reversing Trim Throttle Cut Swash Parameter Reset Type-6 swash plus acro Modulation (PCM/PPM, FM) Throttle Curve Normal 5-Points Pitch Curve Normal 5-Points

Helicopter Advance Menu

Throttle Curve 5-Points Idle up 1 & 2 Pitch Curve 5-Points Idle Up 1 & 2 Revo Mixing Gyro Hovering Throttle Hovering Pitch Throttle Hold Offset 3 Programmable Mixes
S3151 Digital Servo (FUTM0310)
Most 7C systems include Futabas S3151 digital servos. A sophisticated microprocessor amplifies the signal, sending pulsed power to the motor six times faster than conventional servos. That virtually eliminates deadband and delivers full power almost instantly. You enjoy higher torque and faster rotational speeds for significantly improved model performance! FUTM0310

Dimensions: 1.6 x 0.8 x 1.4 in (40.4 x 19.8 x 36mm) Weight: 1.5 oz (42g) Speed @ 4.8V: 0.21 sec/60 Torque @ 4.8V: 43.0 oz/in
Recommended accessories for your 7C System.

Double Transmitter Case

Brushed aluminum exterior with foam-padded interior. Lockable latches (includes two keys). Measures 12.8 x 7.9 x 10.3 in (450 x 200 x 260mm). FUTM5705
Aircraft System Transmitter Bag
Soft-side, black nylon bag accepts most stick transmitters. Top is secured by two zippers. Features a carrying strap and side pouch. Measures 8.4 x 4.5 x 10 in (210 x 115 x 255mm). FUTP1005

Trainer Cords

FUTM4415 FUTM4420

MMTC Cord

Square Micro/Square Micro connectors.

MDTC Cord

Round/Square Micro connectors.
Distributed Exclusively Through GREAT PLANES MODEL DISTRIBUTORS COMPANY P.O. BOX 9021, CHAMPAIGN, IL 61826-9021 Copyright 2004 3088276/277 Brochure #FUTZ0067