Hello,
One thing I have noticed, when my throttle level on my honeycomb bravo is set to 0 (bump stop before the button position) the engines seem to hover at 72% NR even with ECLs in the Fly Position.
I looked at the documents at work (I work on CMV-22 USN) when in fly, NR should be over 75 even with TCL at 0. In the start position, NR should be around 68ish as well which i do not see modeled.
Is this an issue with my throttle or something i am doing wrong? Or is this something that is aircraft related?
TIA
Miltech Simulations @MiltechSimulationsWill tweak these values to match the real aircraft.
- VEric Steiner @vFlyingCowboy
Another thing to note with this, I don’t see much movement in NR until my throttle on the B is around 40-50%. With that, i tend not to get much movement torque values until around 60-75%.
I don’t know if that changes anything about the engine curves but thought I would mention it.
Miltech Simulations @MiltechSimulationsThis has been improved for v1.0.1
- TNoel Richardson @tatsukoa
Once 1st engine is started and is in "fly" Nr should be over 75%. If the second engine is started below 75% it may result in improper PRGB (Proprotor Gearbox) clutch engagement and system damage. Some of the "normal" maneuvers require min or max TCL placement, right now that's not possible. Looking forward to seeing the fixes. This is a great aircraft.
In reply tovFlyingCowboy⬆:@nenenuiOver at the MSFS forum we had related throttle discussions … and one of my questions was:
- What is the throttle in the Osprey actually controlling
- … engine fuel injection volume
- … engine shaft power
- … torque at the central gearbox
- … rotor lift force (air flow) ?
After all it is flying mainly on a computer algorithm and so my guess was that the relationship between the throttle position and "well … whatever" might be more complicated (e.g. nacelle angle dependent etc). Does the real flight manual (or flight experience) clearly state what the throttle controls (e.g. what is the reference sensor).
Fascinating topic … thanx for any insight.
- VEric Steiner @vFlyingCowboy
That’s something I do not know off the top of my head. However from what i can tell, the TCL controls the pitch of the proproter and i believe fuel injection at the same time.
As you have stated it’s all computer based systems and im sure i could find the answer out but that is what I have been able to tell.
- Miltech Simulations @MiltechSimulations
I haven't been able to find anything in the flight manual either
- In reply tonenenui⬆:TNoel Richardson @tatsukoa
TCL commands are transmitted electrically by CCPTs (Cockpit Control Position Transducer) to the FCC (Flight Control Computer) which then feed engine power demand signals to the FADECs.
@nenenuiInteresting … as it confirms that it is "complicated"… (complex?).
It would be interesting to know if pilots can "feel" some kind of linear relationship between the "throttle position" and … "something".
I would assume that the most likely candidates might be:- airflow vector thrust (= actual aerodynamic power … and not engine shaft power)
- What is the throttle in the Osprey actually controlling