FS2004 Aircraft Issue; RPM/Manifold Pressure Discrepancy...

ViperPilot2

ViperPilot2

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Staff member
Hello!

Hope everyone had a wonderful Replicated Bird Meat Day and are resting after the Feed!

I'm having an Issue with a particular FS2004 Airplane that I cannot seem to find an answer for; I've posed this issue in other FS Forums but so far, no luck.

I'm hoping that I can get this answered by the expertise of the Members here, so here goes...

I'm flying the Daniel De Silva AT-6 Texan for FS2004, and I cannot seem the get the RPM Gauge to change via the Propeller Pitch controls. The Manifold Gauge is working fine, but for example when I decrease Throttle from the recommended Takeoff setting of 36# down to Recommended Climb setting of 30#, the RPM stays at around 3,000 to 3,200 RPM. I adjust the Prop Pitch through the range of motion, and there seems to be no response from the RPM Gauge.

I've been flying at 24# MP for Cruise and according to the Digital Engine readout I use in a Minipanel, I'm at 55% Output with a 20gph Fuel burn so I'm not overtaxing the Engine. I'd just like to get the RPM to reduce accordingly in correlation with the MP setting.

Is there anyone out there that could shed some light on the issue and perhaps post some suggestions as to bow to remedy this Issue?

Any input would be greatly appreciated.

Thanks! :giggle:
 
what are you using to reduce prop RPM? A joystick or keyboard -?? Could be a control binding problem.
 
Mike71 said:
what are you using to reduce prop RPM? A joystick or keyboard -?? Could be a control binding problem.
Click to expand...

Whether it's with the Keyboard or clicking and dragging the Prop Lever in the pop up Panel down with the Mouse, the result is the same. No variation within the RPM Gauge. It's not a Peripherals issue, for Prop Pitch works with the Keyboard Assignments and the Mouse for other Airplanes with that feature regardless of Engine Type.
 
Is it a bad gauge and can you swap it for a known working one?
Do you have AFSD or FSDAT to check that you are actually affecting the RPMs when operating the control. Either will tell you if the RPM is changing and therefore if your gauge is faulty.

If other aircraft work fine with the same controls/mouse operation then I would suspect the gauge in the problem aircraft.
 
Tako_Kichi said:
Is it a bad gauge and can you swap it for a known working one?
Do you have AFSD or FSDAT to check that you are actually affecting the RPMs when operating the control. Either will tell you if the RPM is changing and therefore if your gauge is faulty.

If other aircraft work fine with the same controls/mouse operation then I would suspect the gauge in the problem aircraft.
Click to expand...

I will give that a try... Thanks! :)
 
I replaced the Gauge in question and loaded AFSD on my FS rig, then took the Airplane in question for a Flight.

Same thing occurred; at 30# Manifold Pressure (recommended Climb Setting) the RPM gauge stayed at 3,000 RPM with the Prop Pitch adjusted to full Fine Pitch

AFSD read 1,945 RPM according to its Engine Data Table.

At 24# MP (Cruise) the Rpm Gauge dropped to 2,700 RPM (recommended 1,850 RPM) and AFSD read 1,320 RPM.

Since I'm not up to speed with regards to adjusting .air Files I am at a loss to ascertain what I need to do to alleviate this discrepancy.

I Cut and Pasted the Engine and Propeller entries from another T-6 Airplane for FS2004 (Cliff Pressley) into this Airplane in an attempt to boost its Cruise Speed. In the 'donor' Airplane everything functions as per Book Specification as designed by the Author.

Therefore, I can only surmise that the .air file for the airplane in question is the culprit.
 
Good evening gents,
I have both T-6, from Alphasim and from Skyunlimited
On both the prop pitch works well
just to test attach the aircraft.cfg to a post here and I will have a look by comparing with both of my planes
I have seen on some rpm gauges the rpm seen on the gauge and the rpm announced by the fly tips are different
On my experiance with german gauges I have found that some rpm gauges read the engine rpm and some read the propeller
rpm. Also the propeller entry "gear reduction" plays its role
Best regards
Michael Vader
 
@michaelvader Appreciate the Reply!

I've been flying this particular T-6 in a Challenge Flight created at another FS Website. Considering I only have one, maybe two more Flight Legs to go before this Challenge is complete, I'm just going to accept the shortcomings of this particular airplane and leave it as is. I'll go ahead and remove it from the Sim once I'm done with it.

Many Thanks for your Offer and Assistance!

Alan (vp²) :)
 
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