derelor Posted June 3, 2011 Posted June 3, 2011 (edited) Hi! Can anyone tell me why the APU GEN caution light starts flashing once my left engine is at ~50% core fan RPM during startup. I attached my startup procedure so you can reproduce. Thanks, derelor UPDATE: added v1.2b of my startup procedurederelor-a10c-startup-v1.2.pdfderelor-a10c-startup-v1.2b.pdf Edited June 4, 2011 by derelor 1 1338 - beyond leet ED Forum rules EN|DE|RU
xjiks Posted June 3, 2011 Posted June 3, 2011 I think that's because you shouldn't use the APU generator and the Engine electrical generators at the same time. So just turn off the APU generator when at least one engine is running. (that's just my though, maybe wait for an expert advice :helpsmilie:) L'important n'est pas de tuer, mais de survivre. [sIGPIC][/sIGPIC] if you read this you are too curious
mia389 Posted June 3, 2011 Posted June 3, 2011 Its great! Now you can set up all avionics without starting your engines. I would love to have a mission where you start with APU running but not engines.
Snoopy Posted June 3, 2011 Posted June 3, 2011 It comes on as soon as the load is taken over by the engine generators, this is how the system works real world. v303d Fighter Group Discord | Virtual 303d Fighter Group Website
derelor Posted June 3, 2011 Author Posted June 3, 2011 It comes on as soon as the load is taken over by the engine generators, this is how the system works real world. So what should I change in my procedure to not see that caution light? 1338 - beyond leet ED Forum rules EN|DE|RU
Eddie Posted June 3, 2011 Posted June 3, 2011 Nothing, it's just there to let you know the APU Gen is no longer providing power to the aircraft systems and can be switched off. 1
derelor Posted June 3, 2011 Author Posted June 3, 2011 Nothing, it's just there to let you know the APU Gen is no longer providing power to the aircraft systems and can be switched off. Thanks for clarification! 1338 - beyond leet ED Forum rules EN|DE|RU
sobek Posted June 3, 2011 Posted June 3, 2011 Nothing, it's just there to let you know the APU Gen is no longer providing power to the aircraft systems and can be switched off. Shouldn't it be left on to power the APU oil cooler fan? Good, fast, cheap. Choose any two. Come let's eat grandpa! Use punctuation, save lives!
hassata Posted June 3, 2011 Posted June 3, 2011 This came up early in the beta. IIRC Paul mentioned that that only applies to the A. [sIGPIC][/sIGPIC]
Snoopy Posted June 3, 2011 Posted June 3, 2011 (edited) Shouldn't it be left on to power the APU oil cooler fan? You are correct it needs to be left on when the APU is running for that reason. The caution light is to tell you the APU gen isn't supplying power. This came up early in the beta. IIRC Paul mentioned that that only applies to the A. Don't remember that but if I did I was wrong. The APU I. Both A and C models operates the same it wasn't effected by any C model mods. Edited June 3, 2011 by Snoopy v303d Fighter Group Discord | Virtual 303d Fighter Group Website
hassata Posted June 3, 2011 Posted June 3, 2011 (edited) You definitely didn't say it-my bad. The earlier thread was related to the cooling of the INS: http://forums.eagle.ru/showthread.php?t=61233&highlight=apu+hassata Edit: Any word on the updated checklists? No rush-just wondering. And thanks for putting them together, they'll go great with .08! Edited June 3, 2011 by hassata [sIGPIC][/sIGPIC]
Snoopy Posted June 3, 2011 Posted June 3, 2011 You definitely didn't say it-my bad. The earlier thread was related to the cooling of the INS: http://forums.eagle.ru/showthread.php?t=61233&highlight=apu+hassata Edit: Any word on the updated checklists? No rush-just wondering. And thanks for putting them together, they'll go great with .08! Should be monday, was busy testing 0.8 and had to put that on the back burner. v303d Fighter Group Discord | Virtual 303d Fighter Group Website
Snoopy Posted June 3, 2011 Posted June 3, 2011 Ok I checked the C model -1 when I got home and it looks like something was changed concerning the APU generator from the A to C model. Not sure exactly but my guess would be because of the additional power required to run all the C model upgrades. The A model -1 says this about the APU Generator Switch: If the APU is operating with the APU generator switch in PWR, and APU is shut down and restarted, the APU generator will remain inoperative until APU generator switch is momentarily positioned to OFF/RESET, then returned to PWR. The C model -1 says this about the APU Generator Switch: If the APU is operating with the APU generator switch in PWR, and the APU is shut down and restarted, confirmation should be made that the APU generator is operating. If not, the APU generator switch should be momentarily positioned to OFF/RESET, then back to PWR. v303d Fighter Group Discord | Virtual 303d Fighter Group Website
AlphaOneSix Posted June 4, 2011 Posted June 4, 2011 Maybe an emergency procedures thing? Reminds me of the S-92 (since I'm a helo guy) where the APU GEN switch is left on in flight so if you need it in an emergency you only have to flip one switch (APU ON) instead of two in order to get emergency electrical power.
derelor Posted June 4, 2011 Author Posted June 4, 2011 Hi! I uploaded v1.2b to the first post. Could any of the experts please check for errors? 1338 - beyond leet ED Forum rules EN|DE|RU
Snoopy Posted June 4, 2011 Posted June 4, 2011 Maybe an emergency procedures thing? Reminds me of the S-92 (since I'm a helo guy) where the APU GEN switch is left on in flight so if you need it in an emergency you only have to flip one switch (APU ON) instead of two in order to get emergency electrical power. Nope, not an emergency procedure, as I've stated earlier, on startup you don't switch the gen on until the APU is stabilized at 100% and before shutdown you turn the generator off. v303d Fighter Group Discord | Virtual 303d Fighter Group Website
RogueRunner Posted June 4, 2011 Posted June 4, 2011 You are correct it needs to be left on when the APU is running for that reason. The caution light is to tell you the APU gen isn't supplying power. The next obvious question is, will bad things happen in game if you do not do this? You cannot cook the motors, so can you break the APU? :joystick: With the price of ammunition these days do not expect a warning shot.
Snoopy Posted June 4, 2011 Posted June 4, 2011 Can't say for sure but I don't think so.... v303d Fighter Group Discord | Virtual 303d Fighter Group Website
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