mytai01 Posted November 14, 2011 Posted November 14, 2011 I remember a few years back seeing a good description of the fight model coefficients that control how player aircraft behave. Does anyone know if a good description of such things as these: CLa=0.7907 CD0=0.0013 CDL=0.0022 Cmq=-0.1853 Cmad=-0.0161 Cyb=-0.0236 Clb=-0.0752 Clp=-0.0786 Clr=0.0242 Cnb=-0.0797 Cnp=0.0022 Cnr=-0.0048 Is anywhere to be found? Quote
+streakeagle Posted November 14, 2011 Posted November 14, 2011 Very old stuff from Wild Elmo that was copied from SimHQ and repasted: http://bbs.thirdwire.com/phpBB3w/viewtopic.php?f=3&t=554&p=3295&hilit=coefficients#p3295 The main numbers you would want to play with are Lift slope, CLa, zero-lift drag, CD0, and lift-induced drag, CDL. CD0 mainly effects top speed, but also effects level acceleration and sustained rate of climb. CDL mainly effects sustained turn performance. Aircraft with a lot of drag for a given lift coefficient bleed speed faster. CLa works together with CLmax to determine stall speed, max instantaneous turn rate, and influences just about everything else. Lift to drag ratios (determined by the combination of all three of the above terms) affect glide slope and ceiling. The rest of the numbers are all about stability and moments. They are very important, but hard to calculate or even estimate. 1 Quote
+baffmeister Posted November 14, 2011 Posted November 14, 2011 I transferred Streakeagle's Thirdwire FM threads into notepad format, with some editing. I find them quite handy to use. ThirdWire FM Notes.rar ThirdWire Stall Notes.rar 3 Quote
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