REFLECTOR: Speeds

[Richard J. Gentil]

Hi Scott,

I am talking true airspeed. I am taking the alt, barometer, and OAT and using the KIAS I calculated my KTAS. I flew a triangular course and compared the GPS Ground speed to what the E6B was showing. 

I pushed the mixture, prop, and throttle full foward and let the speed stabilize on the two EFIS screens and wrote down my numbers. I tested several altitudes from on the deck up to 6,500 feet. 

Richard

Sent from my iPhone 4 Classic

On Jun 6, 2012, at 5:12 PM, Scott Derrick <scott at tnstaafl.net> wrote:

> Talking speeds kind be very frustrating.
> 
> The only speed I like to talk about is KTAS,  Thats Knots True Air Speed
> 
> not statute miles nautical miles, not indicated airspeed true airspeed, and certainly not ground speed(GPS).
> 
> My IAS indicator has a TAS window, you select what your pressure altitude in reference to the OAT(upper window) and YOUR TAS will be indicated in the lower left window.
> 
> 
> <jfaeejhi.jpeg>
> 
> You can also fly a triangular course, using the GPS ground speed ,  and compute a fairly accurate TAS from that. 
> 
> And of course some of the higher end glass cockpits can compute it for you.
> 
> And if flying very near to sea level on a std day temperature wise and assuming your IAS indicator is close to cal, it will show TAS.
> 
> So Richard when you say 170 kts, what kind of speed are you talking about and how are you measuring it?'
> 
> Scott
> -- 
> Talk sense to a fool and he calls you foolish.
> Euripides
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