Confirm TAS Displayed in F2 External View

[Igor4U]

Airspeed Displayed* in (what would it would be called in Windows) the Task Bar ?

* When in F2 External View

I recall (from a recent post) it said that this was True Airspeed (TAS) displayed in Knots.

 

So I looked at Three Scenarios:

 

MiG-21Bis:

15 Degrees C (Standard Day 59 Degrees F at Surface)

10,000 ft MSL / 39 Degrees F (at -2 degree F per 1,000 ft)

Indicated Airspeed: 710 kph = 383 KIAS

Task Bar Speed Displayed: 430

TAS Calculator1: 481

TAS Calculator2: 460

 

 

F-86:

20 Degrees C (68 Degrees F at Surface)

10,000 ft MSL / 48 Degrees F (at -2 degree F per 1,000 ft)

Indicated Airspeed: 380 KIAS

Task Bar Speed Displayed: 450

TAS Calculator1: 484

TAS Calculator2: 456

 

 

A-10A:

20 Degrees C (68 Degrees F at Surface)

10,000 ft MSL / 48 Degrees F (at -2 degree F per 1,000 ft)

Indicated Airspeed: 280 KIAS

Task Bar Speed Displayed: 322

TAS Calculator1: 356

TAS Calculator2: 336

 

 

Observation: In each case, the Task Bar Airspeed (TAS?) was (1 to 10%) lower than either TAS given by the Calculators.

So I'm still assuming that it's showing True Airspeed, but maybe using slightly different calculations than the Online TAS Calculators

 

 

TAS Calculator (TAS Calculator1)

http://indoavis.co.id/main/tas.html

 

True Airspeed Calculator (TAS Calculator2)

http://www.csgnetwork.com/tasinfocalc.html

 

 

 

Maybe in future builds we can also have Indicated Airspeed, and Ground Speed displayed.

In particular - Indicated Airspeed would be useful because it lets a Pilot know if they have enough Air Molecules to Maneuver.

Edited October 28, 2014 by Igor4U
correction

[Exorcet]

Maybe in future builds we can also have Indicated Airspeed, and Ground Speed displayed.

In particular - Indicated Airspeed would be useful because it lets a Pilot know if they have enough Air Molecules to Maneuver.

I think it's TAS, it agrees with the F-15 TAS.

 

As for what speed to display, I like having TAS, but maybe it's because I fly fighters. IAS corrects for altitude, but you already have the altitude available. TAS lets you know how much energy you have, which is good to know when missiles may be heading toward you.