How to identify Air Speed, Ground Speed and True Speed in IF

[bmebr]

Hello guys!

Air Speed is the speed indicated by the in flight instruments and it is not used to calculate how long will the flight takes. True speed considers the diference betweet airspeed and temperature e etc… Ground speed considers the winds and is better used to calculate how much time you are going to spend during a flight.

ATC uses always air speed… The trip is calculated by ground speed. Ok. But some reference documents use true speed, e.g: airplanes specs.

I think it is correct. Please correct if not.

Besides that, how can I find true speed in IF? I can just find air speed and ground speed.

Thanks!

[Matthew_Chan]

@bmebr

Air Speed is the speed indicated by the in flight instruments

More specifically: Indicated Airspeed

@bmebr

ATC uses always air speed

Ground speed is shown on an ATC screen but speed is given in IAS

I doubt there is a TAS meter implemented in IF though. Would be a good feature request ;)

[DeerCrusher]

This should help.

Understanding different types of speeds

There are 4 different types of speed we are going to be covering in this tutorial. Indicated airspeed (IAS) True airspeed (TAS) Ground speed (GS) Mach speed (M) Indicated airspeed (IAS) [image] Indicated airspeed is what we see inside the plane. This is how we judge when to rotate, when we are approaching a stall. Or any other critical flight dynamic. There is also such thing as Calibrated airspeed (CAS) which is IAS corrected for Installation errors. We don’t have that in IF, but dur…