REFLECTOR: Takeoff roll - fuel burn

[Laurence Coen]

Scott,

Good point.  Stopping distance is a function of speed squared so in your 
example the stopping distance would increase 4x.  With a speed increase of 
about 1.4x speed (the square root of 2) stopping distance would double.  For 
example if your touchdown ground speed is 70 knots normally but increased to 
100 knots at a high density airport your stopping distance would double.

Larry Coen

--------------------------------------------------
From: "Scott Baker" <sbakr at comcast.net>
Sent: Saturday, May 23, 2009 1:41 PM
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Subject: Re: REFLECTOR: Takeoff roll  - fuel burn

> Landing distance also increases with higher density altitude - while the 
> air speed indicator still might say "80" the true air speed (no wind 
> ground speed) is greater.  The brake distance needed to stop a 100mph 
> vehicle is more than 2x the same vehicle going 50mph, meaning stopping 
> distance is not a linear function of ground speed.  The distance may not 
> be so much that they affect the practical aspects of this thread.
> Scott B.
> ----- Original Message ----- 
> From: "Scott Derrick" <scott at tnstaafl.net>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Sent: Saturday, May 23, 2009 9:19 AM
> Subject: Re: REFLECTOR: Takeoff roll - fuel burn
>
>
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