REFLECTOR: Annual inspection/Compression Testing.

Keith Hallsten KeithHallsten at quiknet.com
Wed Sep 10 22:56:04 CDT 2008


Pounds / square inch x square inches = pounds.

Pound / sq in x sq mm = gibberish

Keep the units consistent and you will get real answers.

Keith
 

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Dave Philipsen
Sent: Wednesday, September 10, 2008 7:19 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Annual inspection/Compression Testing.

There is nothing in your formula that quantifies the area over which the 
1698 lbs. is spread.  Using your formula, I could say that the piston is 
132mm in diameter in which case:

13,701.4 sq mm @ 80psi=1,096,112 lbs. force


HYTEC45 at aol.com wrote:
> In a message dated 9/10/2008 11:51:59 AM Pacific Daylight Time, 
> davedent at comcast.net writes:
>
>     Remember you are putting 80psi against sometimes a surface of 5.2"
>     and that's a lot of area to stop. 
>
> 21.23 sq inch.  @ 80psi=1698lbs force.
> TEC 
>
>
>

-- 
Dave Philipsen
Velocity STD-FG
N83DP

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