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option switch for Camber Control, (SW-4) forward. The control surfaces should return to their
neutral position. Flip the switch back and the Camber Control should move the control
surfaces to the position you have programmed. If so, you’ve done great and you have
successfully programmed in Camber Control. Remember that the final position of all flight
controls for using Camber is found in the flight testing of your model. Don’t be afraid to
readjust your model as necessary to make the model behave the way you want it to perform.
LANDING MIX FUNCTION (LAND)
The Landing Mix Function is used to pre-program the flaps and elevator to a position allowing
a slower and controlled landing of your model than may be possible without the use of flaps
and elevator programming. This option is not a proportional control function, meaning the
flaps and elevator will be either in the normal position or in the fully deployed position. When
used in powered models, the use of throttle will control the descent rate of the model with the
landing mode ON. Let’s program the Landing mix in a typical powered model equipped with
flaps, such as a sport scale warbird like the AT-6 Texan.
Make sure your model is set up such that the flaps operate from Channel 6. If you use two
servos for the flaps, you may connect the two servos together using a “Y” connector going to
the receiver. Enter into the Menu Functions program by depressing both the UP and DOWN
Edit keys at once and then use the UP or DOWN Edit keys to scroll to the LAND option
screen. The default screen is the “LAND Inh” screen and to activate the function, press the
CLEAR key once, opening the LAND option screen. On the left of the screen, the ON/OFF
indicator symbol will be flashing and to the right will be the Channel 2 and 6 symbols used for
programming this mixer. The Landing function is turned on by flipping switch SW-4 forward
towards the face of the transmitter. Now, turn ON your receiver with servos plugged into the
proper connectors. Flip switch SW-4 forward to turn ON the Landing function and then press
the Right cursor button once to set the programming arrow over Channel 2, for elevator
programming.
Most aircraft tend to rise or pitch upward when flaps are lowered, therefore requiring some
down elevator compensation. You can only know this by actual flight testing, or if the aircraft
instructions advise you of this possibility. In either case, the exact amount of down elevator
movement needed for your aircraft will require a few flights to determine. For now, program in
a value of about 15% or –15%, depending on which direction the elevator moved when the
programmed value was input. Make sure the elevator moves downward during this stage.
Now, press the Right cursor button to move the arrow indicator over Channel 6 to begin
programming the flaps. Again, input a value to move the flaps downward to the position
recommended by the aircraft manufacturer for the landing position. Make sure both flaps
match in the movement and stopping point when deployed to insure that the plane does not
perform an unwanted rolling motion. Now, flip switch SW-4 back to the center position, and
both the flaps and elevator should return to their original positions. If this is what happens,
then you have completed the programming for your Landing option! Again, it will require
flight testing to get the exact perfect setting for your model, but the results will be well worth
the effort.