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SUB-TRIM

: Makes small changes or corrections to the neutral position of each servo. Range is -120 to +120, with 0 setting,

the default, being no

SUB-TRIM

The recommended procedure is as follows:

•

Measure and record the desired surface position;

•

Zero out both the trims (

TRIM RESET

menu) and the

SUB-TRIM

s (this menu);

•

Mount servo arms and linkages so that the control surface's neutral is as correct as possible; and

•

Use a small amount of

SUB-TRIM

to make fine corrections.

GOAL of EXAMPLE:

STEPS:

INPUTS:

We recommend that you center the digital trims before making

SUB-TRIM

changes, and that you try to keep all of the

SUB-TRIM

values as small as

possible. Otherwise, when the

SUB-TRIM

s are large values, the servo's

range of travel is restricted on one side.

Adjust the flap servo' s

SUB-TRIM

until

its center exactly matches the aileron
servo' s center, as they will work
together as flaperons.

Where next?

Open

BASIC

menu, then open

SUB-TRIM

Choose the channel to adjust, and
adjust until surfaces match. (Ex: flap)

Repeat for other channels.

Close.

for 1 second.

(If

ADVANCE

again.)

SUB-TRIM

as needed.

to each channel,

as needed.

Adjust trim steps: see p. 38.
Adjust

END POINT

s: see p. 31.

Set up dual/triple rates and exponential (

D/R,EXP

): see p. 33.

Содержание 7C -

Страница 1: ...and additional programming examples available at www futaba rc com faq 7c faq html INSTRUCTION MANUAL for Futaba 7C 2 4GHz 7 channel FASST Radio control system for Airplanes Helicopters Entire Content...

Страница 2: ...ELEVON 44 Twin Elevator Servos AILVATOR 45 V TAIL 46 SNAP ROLL 47 Mixes definitions and types 48 ELE FLP 49 Air Brake A BRAKE 52 FLP ELE 50 AIL RUD 51 Prog Mixes P MIX1 3 53 Other Equipment 56 HELICOP...

Страница 3: ...Don t have Internet access Internet access is available at no charge at most public libraries schools and other public resources We find internet support to be a fabulous reference for many modelers...

Страница 4: ...RBRC is a trademark of the Rechargeable Battery Recycling Corporation 4 1 This product may be used for model airplanes or helicopters It is not intended for use in any application other than the contr...

Страница 5: ...plete checkup and service Ni Cd Battery Charge the batteries See Charging the Ni Cd batteries p 14 for details Always recharge the transmitter and receiver batteries for at least 15 hours before each...

Страница 6: ...ctric powered or gasoline powered models the engine may unexpectedly turn on and cause a severe injury While you are getting ready to fly if you place your transmitter on the ground be sure that the w...

Страница 7: ...y setting dual rates to 3 position switches Six SWITCHES and 1 DIALS assignable in some applications Trainer system includes the functional F setting which allows the student to use the 7C s mixing he...

Страница 8: ...vos 8 RECEIVER R617FS Futaba s small and light weight powerful 2 4GHz FASST R617FS receiver for flight system can control giant scale models as easily as park flyers FASST transmitter module system an...

Страница 9: ...tandard digital Control system Pulse width control 1 52 ms neutral Power requirement 4 8V from receiver Output torque 69 4 oz in 5 0 kg cm at 4 8V Operating speed 0 22 sec 60 at 4 8V Size 1 57 x 0 79...

Страница 10: ...7C system to make it easier to handle and improve your flying precision since your hands won t need to support the transmitter s weight Y harnesses servo extensions etc Genuine Futaba extensions and Y...

Страница 11: ...optional neckstrap Edit Keys Edit keys Aileron Trim Lever Dial Elevator Trim Lever Elevator Aileron Stick Aileron Dual Rate Switch Elevator Flap Mixing or Airbrake Mixing Switch Carrying Handle Antenn...

Страница 12: ...ition ON Hook for optional neckstrap Edit Keys Edit keys Aileron Trim Lever Dial Elevator Trim Lever Elevator Aileron Stick Aileron Dual Rate Switch Throttle Hold Switch Trainer Switch Carrying Handle...

Страница 13: ...The factory default functions activated by the switches and knobs for a Mode 2 transmitter are shown below Most 7C functions may be reassigned to non default positions quickly and easily Basic control...

Страница 14: ...eries 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...

Страница 15: ...s 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 To adjust your springs...

Страница 16: ...when placed on the servo After the servos are installed operate each servo over its full travel and check that the pushrods and servo arms do not bind or contact each other Also make sure the control...

Страница 17: ...case the antennas should be placed at both sides of the model Then the best RF signal condition is obtained at any ying attitude 3 The antennas must be kept away from conductive materials such as meta...

Страница 18: ...tion so it will be within reach after starting the engine Be certain the throttle stick is all the way down then start the engine Perform another range check with your assistant holding the plane and...

Страница 19: ...p screen SELECT CURSOR BUTTONS key Press SELECT CURSOR BUTTON to scroll through and select the option to edit within a function Press SELECT CURSOR BUTTON to page up page down within BASICor ADVANCE m...

Страница 20: ...vated Switches for which warnings will be issued at power up are listed below ACRO Throttle cut snap roll airbrake HELI Throttle hold idle up If turning a switch OFF does not stop the mixing warning W...

Страница 21: ...a 4 channel Airplane 23 ACRO BASIC MENU FUNCTIONS 25 MODEL Submenu MODEL SEL COPYand NAME 25 Parameter PARA Submenu RESET TYPE CH5 CH7 28 Servo REVERSE 30 End Point E POINT 31 Idle Management THR CUT...

Страница 22: ...up and down through the 3 pages of screens in each menu Press Mode Page key to toggle back and forth between BASIC and ADVANCE menus Mode Page Mode Page Select End Selection Cursor Down Cursor Up Dia...

Страница 23: ...l need to change during programming 23 Name the model P 27 Note that you do not need to do anything to save or store this data Only critical changes such as a MODEL RESET require additional keystrokes...

Страница 24: ...CUT to choose THR CUT to OFF to SW to desired switch and position default A and down position to RATE A to down position THROTTLE STICK until throttle barrel closes completely to D R EXP to choose D R...

Страница 25: ...er to set up or fly Each model memory may be of a different model type from the other memories GOAL STEPS INPUTS 25 Select Model 3 NOTE This is one of several functions for which the radio requires co...

Страница 26: ...lane model at extreme altitudes GOAL of EXAMPLE STEPS INPUTS 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...

Страница 27: ...e 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 STE...

Страница 28: ...ction COPY completely overwrites anything in the existing model memory including MODEL NAME The MODEL TYPE function overwrites all data except name GOAL of EXAMPLE STEPS INPUTS Radio shows progress on...

Страница 29: ...he default is H 1 If you are using a heli MODEL TYPE please go to that chapter now to select the proper model type and support your model setup Note that changing MODEL TYPE resets all data for the mo...

Страница 30: ...change affects all models in the radio GOAL of EXAMPLE STEPS INPUTS 30 Reverse the direction of the elevator servo Where next Open REVERSE function Choose proper channel and set direction Ex ELE REV...

Страница 31: ...h as FLAPERON make the adjustments in that function s controls For CCPM helicopters adjust the total travel of the function such as collective pitch in SWASH AFR Adjust the linkage or the END POINT It...

Страница 32: ...eration No more fussing with getting trim in just the right spot for landings GOAL of EXAMPLE STEPS INPUTS Decrease the throttle setting at idle to stop the engine with the flip of a switch default SW...

Страница 33: ...45 At 90 High Rate 9 Adjustability Range 0 140 0 setting would deactivate the control completely Initial value 100 Exponential Changes the response curve of the servos relative to the stick position t...

Страница 34: ...nd switch position Set rate Ex high rate 95 Set expo Ex expo 15 Set expo Ex expo 15 Set 2 expo Ex expo 3 Go to 2nd nd switch position and set rate Ex low rate 70 Optional if using a 3 position switch...

Страница 35: ...3 position switch Where next Open D R EXP function Choose the channel to change Ex aileron is already selected Optional change switch assignment Confirm switch is in desired position and set rate Ex...

Страница 36: ...second Activation by either direction of To quickly reset any timer from the home screen cursor down until the timer blinks Press dial to reset SWITCH A H bySTICK 1 4 THROTTLE STICK is convenient if y...

Страница 37: ...e learning curve elevator and aileron may be set to the N or F mode with the other channels set to and controlled by the instructor Precautions NEVER turn on the student transmitter power ALWAYS set t...

Страница 38: ...the aircraft Most ordinary aircraft do well at about 2 to 10 units Generally larger trim steps are for models with large control throws or for first flights to ensure sufficient trim to properly corre...

Страница 39: ...you center the digital trims before making SUB TRIM changes and that you try to keep all of the SUB TRIM values as small as possible Otherwise when the SUB TRIMs are large values the servo s range of...

Страница 40: ...function is activated your engine will move to idle if you haven t set a position or a preset position You should immediately land You may temporarily reset the Battery F S function by moving the THR...

Страница 41: ...eron travel than down travel for straighter rolls aileron differential see glossary for definition v Using the two ailerons not only as ailerons but also as flaps in which case they are called flapero...

Страница 42: ...flicting mix activated such as ELEVON 42 Activate twin aileron servos FLAPERON Input 10 more up travel than down travel aileron differential within the FLAPERON programming Where next Open the FLAPERO...

Страница 43: ...be active with the second servo set to CH6 If the FLAP TRIM is inhibited the flap control defaults to the VR dial You can use E POINT to set the travel of the flap if you are using one flap servo If...

Страница 44: ...ramming Adjustability Requires use of CH1 and CH2 Independently adjustable aileron elevator travel Adjustable aileron differential NOTE If ELEVON is active you cannot activate FLAPERON or AILVATOR You...

Страница 45: ...aileron travel is set to 0 For aileron effect the elevators are raised and lowered opposite of one another in conjunction with the ailerons Once AILEVATOR is activated unless you zero out the aileron...

Страница 46: ...are combined Ex A v tail polyhedral wing with no ailerons would use this option The v tail will have both pitch and roll on the right stick For details on setting up a complex plane such as one with...

Страница 47: ...and spins without over rotation see p 56 Adjustability Travel Adjust the amount and direction of elevator aileron and rudder travel Range 120 to 120 on all 3 channels Default is 100 of range of all 3...

Страница 48: ...x with all assignments programming set up and ready to use Additionally the7C ACRO and HELI programs provide 3 linear fully programmable mixes that allow you to set up special mixes to resolve flight...

Страница 49: ...e full up elevator Switch assignable or null mix is always active GOAL of EXAMPLE STEPS INPUTS 49 Activate ELEV FLAP mixing Adjust flap travel to 45 flaps Set switch assignment to null so the mix is a...

Страница 50: ...fault of 50 one half of the elevator range is achieved when the flaps are lowered to full range Offset offsets the elevator s center relative to the flaps GOAL of EXAMPLE STEPS INPUTS Activate FLAP EL...

Страница 51: ...ed aircraft Adjustability Rate 100 to 100 with a default of 50 one half of the rudder range is achieved when the AILERON STICK is pulled to provide full left or right aileron GOAL of EXAMPLE STEPS INP...

Страница 52: ...ntrolled Elevator and flap may be set independently in AIRBRAKE including set to 0 to have no effect Note If using FLAPERON with channel 5 or 7 the AIRBRAKE has separate settings for the aileron servo...

Страница 53: ...rcumstances such as simulating one engine flaming out on a twin or throttle assisted rudder turns also with a twin Adjustability Defaults The 3 programmable mixes default to aileron to rudder mixes PR...

Страница 54: ...ive at all times Rate the percentage of the slave s range it will move upon maximum input from the master channel Ex RUDDER AILERON mix 50 Ail range 1 When rudder is moved full right ailerons move 1 2...

Страница 55: ...when tilting the model 55 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 Where next Open an unused programmable mix Ex u...

Страница 56: ...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 bat...

Страница 57: ...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...

Страница 58: ...ading hold 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...

Страница 59: ...SICmenu Open THR CUT function Activate the function Choose desired switch and position to activate With THROTTLE STICK at idle adjust the rate until the engine consistently shuts off but throttle link...

Страница 60: ...evel at 0 travel Adjust arms if needed Apply full collective and check that the swashplate remained level and there is no binding Repeat for full cyclic pitch and roll If not adjust as needed to corre...

Страница 61: ...c com faq faq 7c html for specific examples Not operating quite like you expected In many CCPM installations you need to either reverse the direction of a specific function SWASH AFR or reverse a sing...

Страница 62: ...on HELI HR3 Where next Confirm you are currently using the proper model memory example 3 Open PARAMETER submenu Change to the desired MODEL TYPE example HR3 Confirm the change Close On home screen che...

Страница 63: ...ashplate properly Since aileron always uses no more than 2 servos check it first Either both operate properly no change needed both operate backwards reverse the whole function or one servo operates b...

Страница 64: ...1 Set up the normal condition TH CV NOR PI CV NOR REVO NOR see p 65 Set up D R EXP see p 33 HR3 Swash Type AILERON STICK ELEVATOR STICK RUDDER STICK THROTTLE STICK PROPER MOTION Swashplate tilts right...

Страница 65: ...ints 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 cur...

Страница 66: ...model does not rotate its nose at all Hover point Adjust collective pitch curve to 5 degrees Ease heli into a hover Land shut engine off Adjust throttle curves and rudder trim Repeat until model hover...

Страница 67: ...hrottle 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 automatical...

Страница 68: ...you are doing forward flight If you are just learning please follow your instructor s guidance Some instructors like a 1 base point for training so that the helicopter comes down very slowly even if y...

Страница 69: ...right to inverted and back To do so the pitch curve is set to 0 pitch at half stick positive pitch climb upright above half and negative pitch climb when inverted below half stick The throttle curve i...

Страница 70: ...s off the OFFSET and any trim adjustments to it have no effect model obeys the trim settings of the currently active flight condition Defaults to INH When OFFSET is inhibited trim adjustments made in...

Страница 71: ...es Adjustments are quickly reset to the initial value by turning the dial until the trim reads 0 memorizing then returning the knob to its center position Note that all functions including these assum...

Страница 72: ...on the internet www futaba rc com faq faq 7c html SWASH THR mixing corrects slowing of engine speed caused by swash plate operation due to aileron or elevator operation Engine speed can be increased...

Страница 73: ...aq 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 Headi...

Страница 74: ...etting in idle up2 and normal Where next Open and activate the GYRO function Optional change gyro type to Heading hold GY Optional change switch assignment Ex select E Adjust gyro rates as needed Ex N...

Страница 75: ...minates the need to spend large amounts of time setting up throttle curves as it automatically adjusts the engine s RPM to maintain the desired head speed GOVERNOR The Governor mixing function is used...

Страница 76: ...e relationship of the governor speed setting rS1 rS3 and the switch positions conforms to the table above v In throttle hold always check that the governor is off If the speed value rises in throttle...

Страница 77: ...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...

Страница 78: ...rammable 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...

Страница 79: ...ges Binding Friction in a joint exceeding the movement of the linkage Sticking or inability to continue movement The servo continues to attempt to move the surface beyond its power capabilities rapidl...

Страница 80: ...rtable to fly in different maneuvers 7C supports triple rates by simply assigning dual rates to 3 position switches Includes exponential function see EXP 33 Elapsed Time Counter reset see TIMER 36 Ele...

Страница 81: ...r See TRAINER Gain The responsiveness or amount of control given the gyro On a high gain the gyro is very active and overrides nearly all other actions Too high a gain may result in wagging at the sur...

Страница 82: ...he ideal hovering point 71 IDLE UP Separate condition created to allow inverted and other types of flight with a helicopter not easily achieved in the normal condition Note the idle ups are activated...

Страница 83: ...settings of one model already in memory into a second model memory Often used to set up 2 similar models or make a copy of a working model to experiment with new setups 26 MODEL NAME Gives each model...

Страница 84: ...ansmission See Modulation Programmable mix Used to cause specific servo responses to specific inputs separate from the basic control setups Includes extensive definitions of types and examples 53 Rang...

Страница 85: ...h 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 SWASH THR HELI...

Страница 86: ...ger to turn timers on off may be programmed 36 TRAINER Software that allows 2 radios to be connected via trainer cord giving student control of all or some of the channels of the aircraft at the flip...

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