REFLECTOR: Retract speed increase

Keith Hallsten KeithHallsten at quiknet.com
Thu Apr 27 19:59:42 CDT 2006


Bob Wood has a fixed-gear XL flying - he parked it in my hangar when
visiting northern California a couple of years ago.  There are several of us
building that configuration.

Keith Hallsten, XLFG


-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Richard Riley
Sent: Thursday, April 27, 2006 4:55 PM
To: Velocity Aircraft Owners and Builders list
Subject: RE: REFLECTOR: Retract speed increase

At 02:21 PM 4/27/2006, you wrote:

>As we all know induced drag is directly related to airspeed.
>
>I guess you meant 'Parasitic drag'.  Induced drag is more a function 
>of weight (lift). At zero AOA there is zero induced drag; everything 
>else is parasitic drag.

And parasitic drag is related to the cube of the airspeed.  But 
you're right, apples to apples is going to be hard if not 
impossible.  I specified small fuselage, large wing, 180 hp because 
my impression (and it's only an impression) is that there might be 
enough of that configuration, fixed gear and retract, to get a 
comparison.  I haven't ever seen a fixed gear XL, for example.  


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