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                           Allegro-List Digest Archive
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                     Total Messages Posted Wed 05/03/06: 3
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Today's Message Index:
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     1. 04:50 AM - Re: drag polar and V speedsdrag polar and V speeds  (Thom Riddle)
     2. 12:46 PM - Re: drag polar and V speedsdrag polar and V speeds  (Thom Riddle)
     3. 01:05 PM - Re: drag polar and V speedsdrag polar and V speeds  (Thom Riddle)
 
 
 
________________________________  Message 1  _____________________________________


Time: 04:50:02 AM PST US
From: Thom Riddle <jtriddle@adelphia.net>
Subject: Re: Allegro-List: drag polar and V speedsdrag polar and V speeds

--> Allegro-List message posted by: Thom Riddle <jtriddle@adelphia.net>

Paul,

I've done some glide and sink speed testing but it was mid day when the 
thermals were active. To do this well it must be during very calm air, 
which I'll do at some time. I guess that regardless of what the factory 
says, the empirical testing should give me what I want to know. What I 
meant by Vy varying with weight was that when flying solo, the Vy would 
be less than when flying at MTOW which is the flight weight at which 
the V speeds are normally reported. Yes, the Vy and Vx are proportional 
to the square root of the flying weight.

Thom in Buffalo


________________________________  Message 2  _____________________________________


Time: 12:46:21 PM PST US
Subject: Allegro-List: Re: drag polar and V speedsdrag polar and V speeds
From: "Thom Riddle" <jtriddle@adelphia.net>

--> Allegro-List message posted by: "Thom Riddle" <jtriddle@adelphia.net>

Allegro-ers,

After extensive searching, I found what I was looking for and have attached three
files (graphs). These are empirical results of actual wind tunnel studies of
the SM701 airfoil, which was originally designed for a high performance sailplane.
No wonder it is difficult to get the Allegro to come down without slowing
down to the mushing region!

Thom in Buffalo


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=32602#32602


________________________________  Message 3  _____________________________________


Time: 01:05:39 PM PST US
Subject: Allegro-List: Re: drag polar and V speedsdrag polar and V speeds
From: "Thom Riddle" <jtriddle@adelphia.net>

--> Allegro-List message posted by: "Thom Riddle" <jtriddle@adelphia.net>

I could not attach more than one file at a time for some reason I don't understand.
So here is a second file.

Thom

--------
Thom in Buffalo
do not archive


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=32606#32606