Mig Fulcrum Posted March 29, 2017 Posted March 29, 2017 I have this curiosity because i know usually pilots turn it off after engine start-up in order to don't waste fuel, but neither the tutorial and the manual help me. I want to know if it's better to turn it off or it needs to stay in on position and if i do that, does DCS implement the fuel consumption due to the operaton of the APU?
yogipol Posted March 29, 2017 Posted March 29, 2017 As far as I know Mig 21 used to be using external air cart for starting engine. I believe It is just a switch which controls some air valve. But I might be wrong...:smilewink: HP Reverb, Intel I7 9700K, Zotac GTX 2080Ti, 32GB Ram @4000Mhz Corsair, SDD M.2 500GB Samsung 970 PRO
Golo Posted March 29, 2017 Posted March 29, 2017 (edited) MiG-21 does not have APU (at least not in the sense you think of it), it has starter-generator. It is elektromotor that spins up the engine and after engine reaches specific rpm its function is changed to generate electric power, so no you do not need to switch it off. It can be started with external el. power connected or on internal bateries only. Edited March 29, 2017 by Golo
Dolphin887 Posted March 29, 2017 Posted March 29, 2017 (edited) The "Starter" device in MiG is actually a sequencer for proper engine start-up. Once used on the ground, it should not be turned off except in the case of unsuccessful start up (for resetting purposes). It should stay ON whole flight time, in order to enable proper engine starting in the air (if necessary). It does not consume the fuel during the flight nor on the ground (it's electrically powered). Edited March 29, 2017 by Dolphin887 added few info Power through superb knowledge, training and teamwork. [sIGPIC][/sIGPIC]
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