Unable to Fly Battery Hot and Overheat
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Oh, I see why I couldn't find it... it's on the MSFS forums lol... anyway, this may help you, along with some later posts a bit further down: https://forums.flightsimulator.com/t/black-square-caravan-professional/760197/187
It's the standby generator they suggest turning on immediately, apparently the regular gen doesn't kick in at first at idle.
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I've been trying to reproduce this for a while now, and then I had a realization.
I was surprised to hear this, since it's the same basic battery temperature code I've been using in all my aircraft. I couldn't reproduce this with a 50% drained battery, 140°F ambient temperatures, and maximum electrical load in the aircraft. Then I remembered a problem I hadn't seen since my Analog King Air. MSFS erroneously connects the generator output to the propeller speed, instead of the gas generator in free turbine aircraft. Apparently my last minute beta range changes before release dropped the RPM just low enough in beta that the generator doesn't output sufficient power, and the battery is taking all the load.
This problem will go away as a result of my beta range fixes in v1.1, but in the meantime, the fundamental problem is low propeller RPM. If you just keep the power lever at the flight idle detent when you don't need beta for taxiing, the battery will recharge and cool down.
Feel free to pass this along to the Official Forums. We're planning on getting v1.1 out this week, as soon as Boris and Just Flight are back from FSWeekend. Sorry for the delay!
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I've been trying to reproduce this for a while now, and then I had a realization.
I was surprised to hear this, since it's the same basic battery temperature code I've been using in all my aircraft. I couldn't reproduce this with a 50% drained battery, 140°F ambient temperatures, and maximum electrical load in the aircraft. Then I remembered a problem I hadn't seen since my Analog King Air. MSFS erroneously connects the generator output to the propeller speed, instead of the gas generator in free turbine aircraft. Apparently my last minute beta range changes before release dropped the RPM just low enough in beta that the generator doesn't output sufficient power, and the battery is taking all the load.
This problem will go away as a result of my beta range fixes in v1.1, but in the meantime, the fundamental problem is low propeller RPM. If you just keep the power lever at the flight idle detent when you don't need beta for taxiing, the battery will recharge and cool down.
Feel free to pass this along to the Official Forums. We're planning on getting v1.1 out this week, as soon as Boris and Just Flight are back from FSWeekend. Sorry for the delay!
@Black-Square
OK great, thank you so much. Always good to know that I'm not doing something wrong.
I have managed to avoid this for the most part by turning on the standby generator which kicks in during beta application.
This is my first Black Square product as I'm an airliner flier rather than GA and I am so impressed by what a great quality product this is. I hope over time we might see another airliner type product like a B1900, SAAB340 or dare I even dream of a DHC8-100/200/300! -
I've been trying to reproduce this for a while now, and then I had a realization.
I was surprised to hear this, since it's the same basic battery temperature code I've been using in all my aircraft. I couldn't reproduce this with a 50% drained battery, 140°F ambient temperatures, and maximum electrical load in the aircraft. Then I remembered a problem I hadn't seen since my Analog King Air. MSFS erroneously connects the generator output to the propeller speed, instead of the gas generator in free turbine aircraft. Apparently my last minute beta range changes before release dropped the RPM just low enough in beta that the generator doesn't output sufficient power, and the battery is taking all the load.
This problem will go away as a result of my beta range fixes in v1.1, but in the meantime, the fundamental problem is low propeller RPM. If you just keep the power lever at the flight idle detent when you don't need beta for taxiing, the battery will recharge and cool down.
Feel free to pass this along to the Official Forums. We're planning on getting v1.1 out this week, as soon as Boris and Just Flight are back from FSWeekend. Sorry for the delay!
@Black-Square said in Unable to Fly Battery Hot and Overheat:
I've been trying to reproduce this for a while now, and then I had a realization.
I was surprised to hear this, since it's the same basic battery temperature code I've been using in all my aircraft. I couldn't reproduce this with a 50% drained battery, 140°F ambient temperatures, and maximum electrical load in the aircraft. Then I remembered a problem I hadn't seen since my Analog King Air. MSFS erroneously connects the generator output to the propeller speed, instead of the gas generator in free turbine aircraft. Apparently my last minute beta range changes before release dropped the RPM just low enough in beta that the generator doesn't output sufficient power, and the battery is taking all the load.
This problem will go away as a result of my beta range fixes in v1.1, but in the meantime, the fundamental problem is low propeller RPM. If you just keep the power lever at the flight idle detent when you don't need beta for taxiing, the battery will recharge and cool down.
Feel free to pass this along to the Official Forums. We're planning on getting v1.1 out this week, as soon as Boris and Just Flight are back from FSWeekend. Sorry for the delay!
I guess that must be why I sometimes see the backup generator light up when using Beta?
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@Black-Square said in Unable to Fly Battery Hot and Overheat:
I've been trying to reproduce this for a while now, and then I had a realization.
I was surprised to hear this, since it's the same basic battery temperature code I've been using in all my aircraft. I couldn't reproduce this with a 50% drained battery, 140°F ambient temperatures, and maximum electrical load in the aircraft. Then I remembered a problem I hadn't seen since my Analog King Air. MSFS erroneously connects the generator output to the propeller speed, instead of the gas generator in free turbine aircraft. Apparently my last minute beta range changes before release dropped the RPM just low enough in beta that the generator doesn't output sufficient power, and the battery is taking all the load.
This problem will go away as a result of my beta range fixes in v1.1, but in the meantime, the fundamental problem is low propeller RPM. If you just keep the power lever at the flight idle detent when you don't need beta for taxiing, the battery will recharge and cool down.
Feel free to pass this along to the Official Forums. We're planning on getting v1.1 out this week, as soon as Boris and Just Flight are back from FSWeekend. Sorry for the delay!
I guess that must be why I sometimes see the backup generator light up when using Beta?
@Airwick Right now it would be, but that will go away with the update.
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@Airwick Right now it would be, but that will go away with the update.
@Black-Square I’m not having trouble with the battery overheating, and maybe I should’ve created a new thread, but the behavior you’re mentioning here (standby alternator activating when power lever is in beta), is something I’m still seeing occasionally. Should I? Or have I done something wrong?
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@Black-Square I’m not having trouble with the battery overheating, and maybe I should’ve created a new thread, but the behavior you’re mentioning here (standby alternator activating when power lever is in beta), is something I’m still seeing occasionally. Should I? Or have I done something wrong?
@ploodovic I'm seeing the same behavior on more or less every flight (also without battery problems)
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I've still never seen this behavior with any atmospheric conditions on my end, so pardon me for asking again if you guys have a control binding for the second alternator that might be causing the hardware to spam toggle the alternator, thereby triggering the light.
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I've still never seen this behavior with any atmospheric conditions on my end, so pardon me for asking again if you guys have a control binding for the second alternator that might be causing the hardware to spam toggle the alternator, thereby triggering the light.
@Black-Square that's good to know that it's not expected behavior. I don't think so, but I'll check next time I'm in the game, and I'll report back with a more detailed explanation of what happened when
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I've still never seen this behavior with any atmospheric conditions on my end, so pardon me for asking again if you guys have a control binding for the second alternator that might be causing the hardware to spam toggle the alternator, thereby triggering the light.
@Black-Square I don’t have any bindings to generators or alternators.
The standby alternator kicks in, when the propeller RPM drops to 700. Now, I read in the patch notes for v1.1, that “RPM drop after beta activation is now only momentary”. Indeed, most of the time, the RPM drops from ≈1,000 to 800, and quickly back up again. But sometimes, for me, it doesn’t go up again, and instead it keeps dropping until it reaches 700.
I tried to make a recording, and, of course, I can’t trigger it on demand.
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@ploodovic I'm seeing the same behavior on more or less every flight (also without battery problems)
@adomeitus +1. Same here.
Noticed it twice so far. Taking it out of beta made the annunciator go out again.
