Tomcat Driver Posted July 30, 2018 Posted July 30, 2018 How do you go about starting one or both engines in flight?
swagchimp Posted July 30, 2018 Posted July 30, 2018 If just one is out you can do a crossbleed start, if both are out you'll have to do an APU start, but that has a very restrictive envelope, so go check that out in the NATOPS.
Tomcat Driver Posted July 30, 2018 Author Posted July 30, 2018 If just one is out you can do a crossbleed start, if both are out you'll have to do an APU start, but that has a very restrictive envelope, so go check that out in the NATOPS. I thought so, tried it and didnt work then tried again and it worked. Thanks anyway.
BSS_Sniper Posted July 31, 2018 Posted July 31, 2018 Should be able to do a windmill start without the apu if you’re high and fast enough. I9 9900k @ 5ghz water cooled, 32gb ram, GTX 2080ti, 1tb M.2, 2tb hdd, 1000 watt psu TrackIR 5, TM Warthog Stick and Throttle, CH Pedals
Figaro9 Posted July 31, 2018 Posted July 31, 2018 X bleed restart: Envelope:150kts-400kts CAS, Alt. 0-25´000ft. Restart above 25´000ft possible but not probable Attempting to restart an engine that has flamed out for no apparent reason may result in an engine bay fuel leak/fire. If rpm above 30% 1. Throttle -ABOVE IDLE If rpm below 30% 1. Throttle other engine -80% MINIMUM AND FUEL FLOW 1,900 PPH MINIMUM 2. Engine crank switch -BAD ENGINE 3. Throttle BAD engine -ABOVE IDLE APU Start and Engine Restart Envelope: The APU start and engine restart envelope is BELOW 10,000 feet ALTITUDE and BELOW 250 knots CAS. NOTED An APU restart should not be attempted except as last resort. DAPU start probability is improved if HYD ISOL ORIDE is selected for 10 seconds-before attempting start.
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