nose wheel control ?

[dusty IV]

Maybe a dumb question but first time I built a plane with a steerable nose wheel. It's a scratch built 80" Kadet that been bashed a bit.

Separate servos are used for the nose wheel and rudder. How to you handle this? Can I use a Y on Ch 4 or program Ch 5 or 6 to handle one of the functions? Could the big front wheel effect fight if it moves in the air.

Xmitter is a new 2 gig 7 ch Futaba.

[Bill Hawthorne]

Just put a Y-harness in it and be sure both the wheel and rudder move in the correct direction. The large front wheel will not effect flight enough to notice.

Bill

[GordonTarling]

My preference would be to give the nosewheel its own servo from a spare channel if you have one - mix into that channel from the rudder channel. That way, you can easily adjust throw and direction of the nosewheel without having to mess about with linkages etc. You'll probably want the nosewheel travel to be less than the rudder and it would also be handy to be able to switch the mixer in for taxying and out when you're on the takeoff roll. All this should be possible with your transmitter, just don't ask me how yet, as I just got mine! :)

[goldenite007]

My preference would be to give the nosewheel its own servo from a spare channel if you have one - mix into that channel from the rudder channel. That way, you can easily adjust throw and direction of the nosewheel without having to mess about with linkages etc. You'll probably want the nosewheel travel to be less than the rudder and it would also be handy to be able to switch the mixer in for taxying and out when you're on the takeoff roll. All this should be possible with your transmitter, just don't ask me how yet, as I just got mine! :)
Futaba 7ch should be able to do this, if not go with Y harness

[dusty IV]

I'm going to try to use the Y for simplicity. The plane is built however and I don't know if the two servos are running the correct direction to work together.

I'll have to move the tail rudder servo to get enough clearance for the linkage if it's backwards. Since Murphy lives in my shop I'm sure backwards it is. Drat.

Maybe tomorrow I've have time to check it out. I have a servo checker/tester that really helps set up if I can find it among all my stuff. Some day before I die I will get organized, er maybe that is.

[goldenite007]

It seems there should be something that plugs into the reciever then you plug your servo into that reverses the servo....but I dont think there is and it would be too expensive for pratical use :p

You say you dont have room [right now] to reverse control arm? bummer :eek:

Please post pics, I want to see this plane (ive given alot of though into her :p ) My grandpa has a modified Sr. Kadet that flies great :D

[Bill Hawthorne]

If one of the servos move in the wrong direction, try something like this to correct it.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXAFN2&P=ML

[highflier]

I personally would use a extra channel and use a mix. This way you can trim in flight and ground handling seperately. However if you want to use a Y harness and can not Use the otherside of the servo to fix rotation this would be your best bet
http://www.servocity.com/html/hs-422_super_sport_.html

Scroll down and choose Reverse.

Highflier

[goldenite007]

If one of the servos move in the wrong direction, try something like this to correct it.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXAFN2&P=ML
Holy :censored: ! I was just kidding! They actually make that! :eek: :eek: :eek: :eek:
If you want you could do the Y-harness now, then after some experience with TX try the mix :D

[highflier]

$20. bucks to get a reversing cable. $22 to just get a servo that runs reverse. For 2 more bucks 1 less wire dangling around. ServoCity chipping is likely to be less also.


Highflier

[dusty IV]

I had room to flip the Servo arm to the opposite side. Easy fix. I just knew it would be on the wrong side. You would think once in my life I would luck out.Nope. Same deal on the motor , it always runs backwards so I always use connectors for easy reversal. CC can be reprogramed but dragging the ESc up to the PC is a pain.

I use a York www.york-electronic.com servo adjuster to set up the servos. Just a luxury item but saves the hassle of dragging out the xmiter etc. Cost about $25 delivered and well worth it if you build a lot of planes. It's shipped with a real Mickey Mouse AAA battery holder. Trash that thing and use a rec battery pack to power it. The AAA batteries will not drive big servos.

Kadet weighs about 7 lbs with 8 each 123 cells. Using a Scorpion 4020 I can get 800 -900 watts depending on how I prop it. Built from scratch I bashed the plans a bit. Fus. is modified for very sharp rotation. Hope the stab is not blanked out by the wing. Using a new CC HC 45 amp ESC. Can use a lot more cells if I need more power. WL is so light I can add another pound or so. Plane on adding a camera and drop. Trap door is roughed in.

any questions?

Should maiden it this week.

[highflier]

I would like to see pics of the bomb drop setup.

Highflier