RCU Forums - View Single Post - Composite-ARF Integral, kinda build thread
Old 03-24-2014 | 09:17 PM
  #1065  
VerneK
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From: Livonia, MI
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The CARF instructions I got with my Integrals were based on Jason Shulman's notes on the prototype. Jason ended up moving his CG forward as well. Unfortunately, CARF never updated their instructions.

If you call the stab zero, set the wing 1/2 degree positive to that, reduce the down thrust to 1/2 degree down (it's got over 2 degrees molded into the nose), add 1/2 degree right thrust compared to what's molded into the nose and put the CG 1/8" behind the leading edge of the wing tube, you'll have an excellent flying plane. The only mix you'll need is the typical down elevator to low throttle for down lines. I don't recall how much, but I'd start at 2 percent that starts kicking in at below 1/4 throttle. Jason flew one of mine (I built 3) and said it was the most locked in Integral he'd ever flown, Most of my settings came from him and Chad Northeast.

Originally Posted by myckey
Hi Verne,

I'm hoping you can help as I'm just putting together an Integral I acquired and the build instructions give the c of g as 205 mm behind the leading edge of the wing LE at the root, that puts it about 20mm behind the centre of the wing tube. I thought that looked a bit rearward so looked on here, the measurement you are giving (1/8th of an inch behind LE of wing tube) would equate to something like 173mm, quite a difference, I'm assuming you're right (and also that is where I would expect it be) but can Carf be that wrong?

Phil