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Prop pitch needles bounce


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Not sure if it’s realistic, but I have the prop pitch controls bound to an axis and when I set them, they bounce +/- 150 RPM from where I have them set. I don’t hear the engine sound change at all, so maybe it’s just the gauges?

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@NineLineSorry, but this doesn't look like vibrations. Granted I never flew a Mossie irl, but I know some vibrating instruments in aircraft.

In the DCS Mossie the RPM indicators act more like an airspeed-indicator in gusty winds. Moves up, dances around, goes down, dances around, moves up dances around, etc.... an instrument that swings because of vibration, swings nearly equidistant forth and back from a center-point.

And cockpit videos of mossies don't show such a behaviour, but they are hard to use as evidence.

 

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Seconded, this doesn't look like a vibrating instrument, it looks like faulty tacho sensors. Which is fine by itself if you want to model faulty sensors!

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1 hour ago, DD_Fenrir said:

Check real cockpit footage of other warbirds and see which suffer the same tachometer oscillation.

Please post a video, where the oscillation that the DCS Mossie shows, is visible on a real warbird.

The videos I checked didn't show this kind of behaviour.

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23 minutes ago, iFoxRomeo said:

Please post a video, where the oscillation that the DCS Mossie shows, is visible on a real warbird.

The videos I checked didn't show this kind of behaviour.

 

I'll chime in with this :-

 

First run of Merlin 25 engine in 50 years! - YouTube

 

I realise it isn't a whole Mossie, BUT, it is a Merlin 25 that is destined to be fitted into a Mossie and it looks as if it's using the coolant radiator set up from a Mossie and the gauges on the operators panel look to be from the aircraft. Notice the RPM gauge (top left of the operators panel in the video) when the engine is running and how the 100 rpm needle is bouncing about.

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15 minutes ago, DD_Fenrir said:

Go find your own videos! I'm not your bloody lackey!

 

Wow, you're so nice.

 

6 minutes ago, bart said:

 

I'll chime in with this :-

 

First run of Merlin 25 engine in 50 years! - YouTube

 

I realise it isn't a whole Mossie, BUT, it is a Merlin 25 that is destined to be fitted into a Mossie and it looks as if it's using the coolant radiator set up from a Mossie and the gauges on the operators panel look to be from the aircraft. Notice the RPM gauge (top left of the operators panel in the video) when the engine is running and how the 100 rpm needle is bouncing about.

Thanks. But I wouldn't take this as a reference. Engine is idling and it looks like a jumpy instrument. The sound of the engine doesn't change while the needle jumps. This kind of movement doesn't look like vibration induced oscillation.

 

I'm looking for cockpit videos and once I find something i'll post it. 

 

Fox

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15 minutes ago, iFoxRomeo said:

Engine is idling and it looks like a jumpy instrument.

And the ones we have in the Mosquito can't be jumpy either because…? 😅

 

S!

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