|Jul 05, 2013, 12:52 PM|
Joined Apr 2011
I too am rather new to IMAC. 3D was never my cup of tea, I was always fascinated by F3A (pattern) flying. To me it seemed like a ballet in the air.
Last year I built my first gasser, pilot Sbach with DLE 30. Then started to read up on how to set it up. IMHO following are a few points;
*IMAC is the precision flying on scale aerobatic plane, which should not deviate more than 10% from original ones.
*setup calls for a 'neutral tendency' in any given attitude.
*absolute meticulous linkage geometry.
*servo arm travel from one extreme to other should mechanically result in about 11* of up & down in elev and aile. Rudd should have about 16-20*. Now this is done at max ATVs. The idea is to spread the entire range of gimbel movement in those 20* (10 up & 10 down) of elev deflection, this results in stepless deflection of control surface.
*last but not the least one has to trim the plane (trim sheet available on various sites). There are perhaps dozen various steps one has to go over patiently, and at times go over & over again..... no short cuts there.
Thing like CoG, role coupling, various mixings, aile diff etc are fine tuned.
In short any scale aerobatic plane can be tuned/setup for IMAC. Of course once the plane is properly dialed in for neutral tendency, one can practice the routine with a caller. It's good idea to keep practicing one move before trying the next one, later they can be stringed together.
BTW I did win a first position in IMAC basic, held in Lahore (Pakistan) in Nov 2012.
|Jul 05, 2013, 04:25 PM|
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