Nefron Posted October 17, 2014 Posted October 17, 2014 Inspired by the Strizhi performance I saw yesterday, I tried some aerobatics in the MiG. I tried doing one of my favorite maneuvers, the bell or the tailslide. The problem is, my engine flames out when I'm at the top of my climb. My question is, is it even possible for a MiG-21 to do a bell, and if so, how?
golani79 Posted October 17, 2014 Posted October 17, 2014 Does the engine stop after you put your nose down? Could be due to negative G - cause the MiG 21 doesn´t like them. If it stops before maybe there´s something wrong with the fuel flow? But I´m not sure on this. >> DCS liveries by golani79 <<
Fenderalac Posted October 17, 2014 Posted October 17, 2014 You experience negative Gs during the maneuver, and that flames out the engine, something about fuel not getting to the engine or something. [sIGPIC][/sIGPIC] I./JG2 Oberleutnant Flieger
Nefron Posted October 17, 2014 Author Posted October 17, 2014 I don't see any negative g on the accelerometer, and it flames out at the apex of the climb. Here is a track of a quick attempt. I'm a bit unstable during my climb.Flameout .trk
51GRIZZLY Posted October 17, 2014 Posted October 17, 2014 Mig - 21 manual pg. 35 20. Negative g-loads may be developed for not longer than: (a) 15 s at non-reheat engine settings; (b) 5 s at reheat settings; © 3 s at second reheat setting. 21. Flight with g-loads approximating zero (±0.2 g) should not last for longer than 1 -2 s.
Nefron Posted October 17, 2014 Author Posted October 17, 2014 21. Flight with g-loads approximating zero (±0.2 g) should not last for longer than 1 -2 s. Well, that's it. There is only one solution to the problem now. We need a MiG-29.
Spectrum Legacy Posted October 17, 2014 Posted October 17, 2014 I've counted circa 9 seconds of 0g(+/-0,2) prior to the engine shut-down. Quite forgiving in my eyes, along with prior warning of empty dispenser tank - not that you could do anything about it at that point though, with such low velocity. But I understand that not everyone sleeps with manual under their pillows! :book: Sent from my pComputer using Keyboard
Zabuzard Posted October 18, 2014 Posted October 18, 2014 Same for me after I tried bell or climbing flat spins, engine flame out.
Dirty Rotten Flieger Posted October 18, 2014 Posted October 18, 2014 I've noticed also that when I get killed in a mission and try to jump into my wingmans plane to continue the fight ...engine flames out. Every time no matter the G, or speed or AoA... can not take control of AI Mig21bis with out flame out
Zabuzard Posted October 18, 2014 Posted October 18, 2014 I've noticed also that when I get killed in a mission and try to jump into my wingmans plane to continue the fight ...engine flames out. Every time no matter the G, or speed or AoA... can not take control of AI Mig21bis with out flame out You properly should create a thread under the Bugs&Problems section for that :D
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