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Old 04-29-2005 | 11:15 PM
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Rcpilot
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Default RE: Lanier Ultimate Pitts


ORIGINAL: martyg

ORIGINAL: Rcpilet
I'm planning on using JR8231 digitals on all 4 ailerons and both elevator halves. I'll be using a JR Matchbox to get the aileron servos all synchronized properly. And another Matchbox on the elevators. JR8411 on the rudder. JR4721 on the choke and an Airtronics 94145 MG coreless on the throttle. Jeez- thats 9 servos.[X(]
Boy, I spent a lot of time agonizing over that part of the engineering. [sm=tired.gif]

Keeping the weight down will be critical on this project. Especially since you'll be flying at altitude.
I would suggest you go with 1 digital per side for ailerons, and fabricate a CF rod interplane linkage. (Save 5oz)
There is very little surface area on these ailerons.

Also, I would use a 8-channel receiver, mix in the transmitter, and dump the matchboxes. (Save more oz and complexity)

I had (4) HS-5625 (Ail/Ele), (1) HS-5945 (Rud), (1) HS-425 (Thr) on mine. (Sorry, not familiar with JR p/n)
5-cell 1650 AA NiMH on Rx (135g) and 4-cell KAN1050 on Ign (90g)
My radio won't mix all those aileron servos properly. Thats why I've gotta use the Matchboxes. The JR8231 servos will pump out real close to 100oz.in. at 6V I'm not sure thats enough to only use 2 on the ailerons and link them with CF rods. If 100oz.in. is enough to run 2 ailerons--then I can dump 1 of the Matchboxes. What do you think?