F-14 Tomcat with Wingsweep

[bootman4er]

Will someone give me advise to connect a Turnigy 9 or Radiolinc 9 to this aircraft. I wish to use the Turnigy but don"t have a manual and cannot get everything to work right. Setting either up is tough and it is very aggravating not to be able to fly this thing. Setting the sticks gear auxiliary everything is rough. The Radiolinc has a blue light on it. S-Bus it takes over the programming card and setting all the options on the transmitter is very confusing. Any help will be appreciated. Thanks

[bootman4er]

PS it is a Freewing with variable wing sweep.

[Kloverzero]

Hi bootman, The control board in the Tomcat takes care of all of the mixing necessary to fly the plane. Your receiver should be hooked up as normal, with the wing sweep in channel 7. When you assign that channel to a switch on your transmitter, start with the end points at 100 each way, and adjust them to keep the controllers from stalling out. The wings will function when you toggle the switch.

[bootman4er]

Thanks. I have been medically unable to do anything. For a year, but I'm ready now and appreciate your help. Could you please let me know what you mean by end points and keeping the controller from stalling out. I would appreciate it and understand if you are unable to. Thanks James McWhorter

[vduniec]

I would like to recommend that when you are initially setting up your servos with your radio, you should not connect the wings to the wing sweep servo until you have everything programmed and tested first. You don't want to wings to sweep while you're setting it up, say with the flaps down. It could damage the plane or burn out a servo.

[bootman4er]

Thanks

[fhhuber]

Thanks. I have been medically unable to do anything. For a year, but I'm ready now and appreciate your help. Could you please let me know what you mean by end points and keeping the controller from stalling out. I would appreciate it and understand if you are unable to. Thanks James McWhorter

"End Points" (EPA, End Point Adjustment)
Also called Adjustable travel volume. Also might be called something else somewhere.

Typical travel range of a servo is +/- 45 degrees rotation from centered. The servo actually can rotate more than 180 degrees (total) mechanically.
Early (and most currently made low cost analog) servos have an absolute limit of 270 deg before destroying the position sensing pot. They usually have a mechanical stop for the output gear to prevent this.
The logical (control board and position sensing) may allow travel from 60 deg each direction up to 270 degrees , 350 degrees or even continuous rotation.

EPA is used to select how much of available travel is used.
For Futaba, the default is to use appx 80% of the default used by JR/Spektrum Most other brands follow one or the other "standard".
So you have to program the travel appropriately for the radio and the model.

The servos used in the F-14 might be programmable digital... or not.
Digital programmable servos could allow access to fine tuning of travel range, centering, speed (slowing them down, which is a good idea for some controls on some aircraft) and travel range. Digital programming of the servo is usually required to access travel ranges beyond 60 deg each way from centered.