Mailing List lml@lancaironline.net Message #21421
From: Eric M. Jones <emjones@charter.net>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: Fw: [LML] Re: Braking Energy
Date: Thu, 13 Nov 2003 19:40:29 -0500
To: <lml@lancaironline.net>
OOPS....Can't get it back

If we assume W=10^3 lbs., V=10^2 knots, N=1 Then the braking energy per wheel by that formula is
 
E=0.44 X 10^3 X 10^2 X 10^2=0.44 X 10^7=4.4 X 10^6 lb-ft
 
If we look at the kinetic energy per wheel, then the braking energy per wheel is
 
E=1/2 WV^2
 
W=pounds "mass"=10^3
V=100 knots=170 feet/second
E=1/2 X 10^3 X 170 X 170=14.5 X 10^6   (over 3 X more)
 
What gives?
Eric
----- Original Message -----
Sent: Thursday, November 13, 2003 3:24 PM
Subject: [LML] Re: Braking Energy

Jeff,

Braking energy per wheel can be calculate as follows

Kinetic Energy = (.044 x  W x V x V) / N

W = Landing weight in lbs
V = Landing speed in knots
N = Number of wheels with brakes

I had a lot of trouble with the original brakes on my LNC360MKII until I replaced them with "Grove" brakes.  They make all the difference in the world.  I don't know what the IVP has but if it anything like the 360 replacement may be a good solution.  Talk to Grove 1-619-562-1268 and see what they have for the IVP.

Good luck

Ray
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