Engine start and idle detent question
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Hardware only to prevent accidentally going into cutoff. Not needed for moving from cutoff to idle. In the F-16 the throttle quadrant is physically connected all the way back to the engine and moving the throttle in the cockpit moves a part back at the engine.
This is your experience based on you personally advancing the throttle from OFF into IDLE without needing to rotate the throttle? The shape of the throttle guide would seem as though such a rotation is required, to clear the notch at cutoff.
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This is your experience based on you personally advancing the throttle from OFF into IDLE without needing to rotate the throttle? The shape of the throttle guide would seem as though such a rotation is required, to clear the notch at cutoff.
Apparently I didn’t break down his post enough as when I am talking about not required ref Planehazza I am talking about his wondering about electronic/sensors on the switch. Yes of course you have to rotate outboard to get it out of cutoff.
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Hi all -
It looks like this thread has run its course; but I can’t help but chime in -
I am trying to take advantage of TM WH’s Idle Detent feature. I’m running with Hardware > Idle Cutoff un-checked in the launcher’s configuration, and have managed to set-up DX in the key file such that “SimThrottleIdleDetent” is asserted both on activating (‘pressing’) and on de-activating (‘releasing’) TM WH’s Idle Detent ‘button’. Note that TM WH’s Idle Detent occurs entirely below the minimum throttle position -What I’ve realized is that “SimThrottleIdleDetent” appears to work like a STROBE rather than like a TOGGLE. That is, it doesn’t appear to TOGGLE a state (Idle Detent) on/off, but instead appears to kick-off an action (based on throttle position as described in Frederf’s 9/26 post “That’s the key word, expect …”). This threw me a curve, as it seems fundamentally different from the real jet’s distinct idle cut-off latch states (latched or un-latched). In retrospect, the action is apparent from absence of e.g. “IdleCutOff_ON” and “IdleCutOff_OFF” call backs.
And I see per Red Dog’s 9/26 post “The [SimThrottleIdleDetent] is just a software detent overcoming that issue [of users that don’t have physical detents in their throttle]” (i.e. the call-back appears to be a work-around). But for TM WH owner’s, using the physical detent feature seems at first to be the default choice -
But I would say that it doesn’t quite play out correctly:
(the bit about having to diddle the throttle before sim will recognize it is omitted from below)in the jet, with engine running (on tarmac) -
roll back TM WH throttle to idle (lowest position) -
- engine spools down to idle (~70%) RPM
(throttle is at minimum axis setting - idle)
assert “SimThrottleIdleDetent” (in my case, lift and pull throttle back to detent position)
- I know that the call-back occurs from its ‘click’ sound in the sim -
- I know that the call-back occurs because engine slowly spools down to 0% RPM -
(throttle remains at minimum axis setting - idle)
assert “SimJfsStart” -
- engine slowly spools up to 20% RPM
(throttle remains at minimum axis setting - idle)
assert “SimThrottleIdleDetent” (in my case, lift and push throttle back out of detent)
- I know that the call-back occurs from its ‘click’ sound in the sim -
(throttle remains at minimum axis setting - idle)
*** AT THIS POINT, I’d expect the engine to begin spooling up to idle, since I’ve taken it out of ‘detent’ ***
- NO ENGINE SPOOL-UP, BECAUSE TM WH throttle can’t possibly yet be above it’s minimum axis position when “SimThrottleIdleDetent” is asserted -
(can’t possibly be above the minimum GUI-defined idle cut-off position)
move throttle position up a bit (but not yet above the GUI-defined idle cut-off position)
- NO ENGINE SPOOL-UP, BECAUSE throttle is not yet above the GUI-defined idle cut-off position
assert “SimThrottleIdleDetent” (this time, via keyboard)
- NO ENGINE SPOOL-UP, BECAUSE throttle is still not yet above the GUI-defined idle cut-off postition
move throttle position up a bit more (this time to above the GUI-defined idle cut-off position)
*** AT THIS POINT, I might also expect the engine to begin spooling up ***
- NO ENGINE SPOOL-UP, BECAUSE the code needs “SimThrottleIdleDetent” [STROBE] to occur once throttle is above the GUI-defined idle cut-off position
assert “SimThrottleIdleDetent” (this time, via keyboard)
- engine spools-up!! (to greater than idle RPM)
pull back throttle to idle position
- engine spools-back to idle -
Even though I have a reasonably representative ‘idle detent’ feature in the ThrustMaster WartHog throttle, the BMS code still seems to require a key_stroke “SimThrottleIdleDetent” to kick-off the engine spool-up (the TM WH detent feature cannot occur with throttle off of minimum axis position). And this seems to be BECAUSE “SimThrottleIdleDetent” is implemented as a STROBE rather than a TOGGLE. And I don’t think there’s any KeyFile magic that can turn a STROBE into a TOGGLE (because a STROBE fundamentally doesn’t know about ‘assert’ and ‘de-assert’) -
Well, it has been ‘fun’ reading these posts (especially the real jet videos), and figuring out how this jet start works -
And now that I know, … it’s all good! Hope the above helps others understand it as well - - engine spools down to idle (~70%) RPM
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If you have a Warthog and are willig to use a script, Morphine’s solution is to me the most elegant. That’s what I use.
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If you have a Warthog and are willig to use a script, Morphine’s solution is to me the most elegant. That’s what I use.
+1 to Morphine’s brilliant engine start/stop code. This allows the WH to behave exactly like the real aircraft and you never have to touch the keyboard. The only way to fly with a WH in BMS for me.
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Thanks I3, Stubbies -
I tinkered with TARGET briefly to turn-off the dang LEDs at computer wake-up. But haven’t done much with in since -
Morphine’s TARGET set-up seems very highly regarded! Will check it out (once I figure out where to find it for download) -
Thanks I3, Stubbies -
I tinkered with TARGET briefly to turn-off the dang LEDs at computer wake-up. But haven’t done much with in since -
Morphine’s TARGET set-up seems very highly regarded! Will check it out (once I figure out where to find it for download)Try the Warthog section on these forums ��
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Thanks I3, Stubbies -
I tinkered with TARGET briefly to turn-off the dang LEDs at computer wake-up. But haven’t done much with in since -
Morphine’s TARGET set-up seems very highly regarded! Will check it out (once I figure out where to find it for download)You do not need to run his entire setup. I borrowed the engine code and plugged it into my own TARGET setup.