Supersheep Posted June 22, 2013 Share Posted June 22, 2013 Found this on en.Wikipedia.org/wiki/A-10C: Combat radius: On CAS mission: 250 nmi (288 mi, 460 km) at 1.88 hour single-engine loiter at 5,000 ft (1,500 m), 10 min combat Do they really pull one engine to idle, and retard the other throttle until they're almost stalling? And that gives so much extra waiting time over the area?? A bit puzzled, Supersheep The PVC Pipe Joystick Stand How to thread Link to comment Share on other sites More sharing options...
Eddie Posted June 22, 2013 Share Posted June 22, 2013 Not that I've ever heard of. Makes little sense either. They do indeed reduce speed to best endurance to maximise loiter though, but by reducing thrust on both engines, not idling one of them. Best endurance is achieved by flying with the AoA in the second white band on the AoA gauge. Spoiler Intel 13900K (5Ghz), 64Gb 6400Mhz, MSi RTX 3090, Schiit Modi/Magi DAC/AMP, ASUS PG43UQ, Hotas Warthog, RealSimulator FSSB3, 2x TM MFDs + DCS MFDs, MFG Crosswinds, Elgato Steamdeck XL Link to comment Share on other sites More sharing options...
ctannell Posted June 22, 2013 Share Posted June 22, 2013 I saw that a few weeks ago as well and tried it in the sim out of curiosity. I can't remember what alt I was at, but the total fuel flow in the single engine case (after proper trim adjustments) was a bit greater than the dual engine case for a given airspeed (max endurance according to the AoA gauge). I think I completely shut the engine down though, I'm not sure if it would be different at idle. Link to comment Share on other sites More sharing options...
HugePanic Posted June 23, 2013 Share Posted June 23, 2013 If you shut down you will also loose one of the hydraulic systems together with one side of the elevator-rudder control. added to that, you will have much more drag that you have to compensate. With less ruder, there is even more drag. I just did some flight testing: -"standard" loadout of the a-10 loitering. -5000ft -147kts IAS 2engines --> 2x1200 pph --> 2400pph 1engline idle --> 300+2200 pph -->2500pph So the added drag in this simulation is good for 100pph of fuel. Point is that it doesn´t make any sence. Trimming the AC to forward flight is a PIA when adjusting the throttle. Maybe i will add some trials when loiting in an orbit. So idle down the inner engine. That can reduce some trimming, but i don´t think it will be better than running both engines.... I did also some short studies around. I find no indication of doing this, so i removed the "single-engine" text from wikipedia. Correct me if i am wrong... Link to comment Share on other sites More sharing options...
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