Author Topic: airspeed indicator  (Read 2688 times)

Offline Zaffex

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airspeed indicator
« on: October 01, 2006, 03:38:17 PM »
Anybody know what the little knob and movable arc on the top part of the airspeed indicator are for? I guessed that it's for true airspeed, but I didn't know for sure.  If it is for TAS, then how do you set it? I think I get that the bottom numbers are for the true airspeed, but I can't make heads or tails out of the top part. ???
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fireflyr

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Re: airspeed indicator
« Reply #1 on: October 01, 2006, 04:05:17 PM »
Align the Outside Air Temperature with the pressure  altitude  by moving the arc, then read your TAS on the outer scale (where the AS  needle is pointing) |:)\
« Last Edit: October 01, 2006, 06:42:05 PM by fireflyr »

Offline Zaffex

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Re: airspeed indicator
« Reply #2 on: October 06, 2006, 02:16:51 AM »
OK, and pressure altitude is alt. reading at 29.92, right? And the numbers for pressure altitude are read in thousands of feet?
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Offline Baradium

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Re: airspeed indicator
« Reply #3 on: October 06, 2006, 03:02:55 AM »
OK, and pressure altitude is alt. reading at 29.92, right? And the numbers for pressure altitude are read in thousands of feet?

Yes, pressure altitude is readiny at 29.92, and the rest sounds about right...
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