reported earlier Airspeed,groundspeed or Total speed ?

[P3CFE]

Is it just me, or is the "Airspeed Indicator" reading an other kind of speed ?.

In a Hover with a headwind it seems to read arround Zero Knots.

And it also looks like, a Climb and descend rate is influencing the Indicated Airspeed.

 

 

Edited November 3, 2024 by P3CFE

[Lord Vader]

Hi @P3CFE

Can you create a simple scenario where you observe these discrepancies? 

[P3CFE]

Definately something wrong here !

IAS should read 50 kts when parked on the Tarmac, because of the headwind of 50 Kts....It reads Zero !.

If I go in hover with nose into the wind, IAS is stil zero.

If i turn tail into the wind,and keep the hover (hell of a Job by the way )..IAS Still Zero !

IF i Climb in the hover IAS go's up.

If i stop the Climb IAS again Zero

IF i Descent IAS Go's Up Again.

 

So it looks like the IAS is giving absolute speed in relation with a fixed point in space.

I can imagine this gives a problem with calculating ETA Etc.

Hope this helps.

50 Kts headwind.miz

Edited November 4, 2024 by P3CFE

[Lord Vader]

Thanks for the track and the description.

The vertical speed being read as airspeed is something we've identified earlier and had previously reported internally. 

I am adding your note about the mission wind as well.

Thanks.