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Posted

Before I post in the bugs section, I thought I'd check this out here. Is the non-functioning air speedo (analogue) a known bug or have I screwed up? The needle is pinned vertically regardless of airspeed.

Ours is not to reason why, but rather to do and die.

 

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Posted

Seems to work fine for me. What's your actual speed? That thing only starts mesuring past some 50kph or so.

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Posted

Well, I could be going 10 or 100Km/h and it stays pinned. But maybe I need to do some more testing.

Ours is not to reason why, but rather to do and die.

 

A man walks into a zoo. The only animal in the entire zoo is a dog. It's a shitzu

 

Posted

Just a guess, but are you in icing conditions with pitot and static heaters off? (not even sure pitot icing is modelled)

 

Do the barometric altimeter and vario work - if they don't work right, it may be static icing.

Posted (edited)

I didn't even check that. I was flying at sea level so I didn't consider icing.

 

The altimeters work, as does the VVI.

 

It is kind of irritating since there is no speed indication below 50 (since it doesn't appear on the HUD)

Edited by LtFransky

Ours is not to reason why, but rather to do and die.

 

A man walks into a zoo. The only animal in the entire zoo is a dog. It's a shitzu

 

Posted (edited)

There's an indication on the HUD, but it's not air speed as in the instrument, IIRC.

Edited by DiabloSP
Corrected now, thanks Alpha1-6.
Posted

That air speed indicator is useless in low speed since it *maybe* read speed like in fixed wing aircraft.

So in slow & not straight flight, it easily fail to deliver correct speed. It's realistic feature.

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Posted

The airspeed does work just like a fixed wing. It does not work under about 50kph. The airspeed on the HUD is the ground speed of the aircraft from the doppler system. It takes a few seconds to start working after you take off. You don't have to start moving...if you just hover for a few seconds it will start working. The speed shown on the TV display is airspeed, and should read the same as you airspeed indicator.

Posted

Is the pitot tube still there? It happens to me that I lose it because of enemy fire and my IAS indicator dies- there is no more total air pressure data. While the static pressure data is provided and the variometer and the altimeter operate.

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"See, to me that's a stupid instrument. It tells what your angle of attack is. If you don't know you shouldn't be flying." - Chuck Yeager, from the back seat of F-15D at age 89.

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Posted (edited)
Is the pitot tube still there? It happens to me that I lose it because of enemy fire and my IAS indicator dies- there is no more total air pressure data. While the static pressure data is provided and the variometer and the altimeter operate.

 

Then it's not modeled correctly, well sort off. If dynamic pressure is blocked (pitot) your ASI would show no change in speed regardless of power changes. If you decent, it will overread and if you climb it will underread. Unless there is a leak in the system it will never drop to zero! MSFS also models this incorrectly. If there is battle damage to the pitot I would imagine that there is either still dynamic pressure present which will lead to fluctuating incorrect ASI readings or the thing is blocked which will lead to the readings above. Of course you could argue that the pitot pipe is cut off and bend away from the airflow now which makes it another static port in which case the ASI would read zero ;)

 

If static is blocked then it will read roughly correctly for straight and level and just the reversed as in pitot blocked in climbs and decents.

Edited by c402_cvs
Posted

If the static ports are jammed you'll lose barometric altimeter and vertical speed altimeter. They all (along with the IAS) use common static pressure system.

"See, to me that's a stupid instrument. It tells what your angle of attack is. If you don't know you shouldn't be flying." - Chuck Yeager, from the back seat of F-15D at age 89.

=RvE=

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