Solved F15 Start Issue
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Status: VKB Stecs Throttle
Mapping: Throttles split and both axes set in Alt/ Launcher
L/R engines Idle cutoff axes mapped same
When right engines gets to 25%, right throttle will not move out of idle cutoff until I move the left throttle to idle. Then right engine, following left throttle, starts normally.
In order to get a normal engine start on left engine I must move it back into idle cutoff which then shuts down the right engine.
Following F15 Engine start check list verbatim.
Any thoughts?
Many thanks. -
Just to be clear, for anyone else stumbling upon this – if your throttle device signals a dx button as pressed, when it’s in the cutoff position (which you can configure VKB STECS to do [1]) and the axes properly report 0% when at the detent… then you probably don’t want to set g_bUseAnalogIdleCutoff in cfg or set an idle-detent in AL/BMS at all – just use the callbacks Kavelenko mentioned above.
[1]
Also note, there are a pair of confusingly-named and labeled callbacks, designed specially for this purpose – map these to the dx button numbers that are signalled, when the respective throttle axes are in the cutoff range.
These callbacks shutoff fuel to the left/right engine, when signalled.
SimThrottleIdleDetentLeft 314 0 0XFFFFFFFF 0 0 0 1 "TQS: CUTOFF RELEASE - Left Engine" SimThrottleIdleDetentRight 314 0 0XFFFFFFFF 0 0 0 1 "TQS: CUTOFF RELEASE - Right Engine"
hth
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@Ransom46 please confirm precisely what version of BMS you’re running?
and confirm you’ve
set g_bUseAnalogIdleCutoff 1
in user cfg, if that’s what you’re intending -
@airtex2019 Using 4.37.3
and… AnalogIdleCutoff 1 is affirmative.
Thanks -
@Ransom46 I fixed some bugs for dual-throttle operation, in 4.37.3.2
this sounds like one
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@airtex2019 Thanks again for your thoughts. Just to be more specific, Hot fix 2 was employed before I started to look at the F15.
Idle cutoff/idle detent works perfectly in the Viper.
I enjoy the learning process of a cold start. As a retied real world pilot I guess that I am just wired that way. In reality, when flying multi player we always go in Taxi so I will seldom start the Eagle mission from the Ramp. I will give it another look later today.
Many Thanks! -
@Ransom46 said in F15 Start Issue:
Any thoughts?
I dont have any issues ramp starting the F-15C using a Warthog HOTAS, just make sure you have a release for both idle cut off release call backs, as below.
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@Kavelenko I guess I have more to learn. How does one invoke the “Release” input? Never mind. I figured it out. Many thanks.
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@Ransom46 if you are truly using analog idle detent, it is not necessary to map any of those callbacks
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Just to be clear, for anyone else stumbling upon this – if your throttle device signals a dx button as pressed, when it’s in the cutoff position (which you can configure VKB STECS to do [1]) and the axes properly report 0% when at the detent… then you probably don’t want to set g_bUseAnalogIdleCutoff in cfg or set an idle-detent in AL/BMS at all – just use the callbacks Kavelenko mentioned above.
[1]
Also note, there are a pair of confusingly-named and labeled callbacks, designed specially for this purpose – map these to the dx button numbers that are signalled, when the respective throttle axes are in the cutoff range.
These callbacks shutoff fuel to the left/right engine, when signalled.
SimThrottleIdleDetentLeft 314 0 0XFFFFFFFF 0 0 0 1 "TQS: CUTOFF RELEASE - Left Engine" SimThrottleIdleDetentRight 314 0 0XFFFFFFFF 0 0 0 1 "TQS: CUTOFF RELEASE - Right Engine"
hth
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@airtex2019 Finally got to implement your suggestion above. So, as of just now the issue is solved. Thanks for the help.