I just tested my AA that has always flown good and the motors quit at the same time . It may not be the reason it flys so well but the one I took back that spiraled left the right motor spun significantly longer than the left when throttle was cut and using the trim pot didn't help . It is very simple to take the spring return off of the throttle . Remove 7 screws peel back the FCC label pry open the throttle side just enough to get a small screw driver inside and pry the spring off the return side . You don't need to remove the spring from the tx just pry it off the tension side
. Enjoy .
ORIGINAL: micro_builder
from owning and following XTwin/AA threads for 5 or 6 months now, i've found that just about every plane has had one motor spin longer than the other when you let the throttle off. i'd bet that most turning issue the AAs have are with the main wings, tail section, and motors. you'd be surprised at how little of an angle it takes on the main wings to make a plane turn on its own (same for the tail wings and motors). i've trained myself to give the entire plane a good looking-over - looking directly at the front, sides, and back just to make sure everything is in line.
anywho, i picked up an AA for the first time yesterday, i think i finally killed the RXs from my old trusty X-Twins (a sad day). that throttle return spring is making life difficult, the xtwins TX didnt have that, so i'm not used to it. i keep letting go of the throttle stick, thinking it'll stay there *d'oh* i'll have to take that spring out soon. i managed to "fly" in my house last night...took a few tries, but here's the video:
http://www.rcgroups.com/gallery/show...cat=500&page=1 enjoy, i know i did
nick