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Re: [Amps] Bag-o-meter calcs in US units

To: amps@contesting.com
Subject: Re: [Amps] Bag-o-meter calcs in US units
From: Ian White GM3SEK <gm3sek@ifwtech.co.uk>
Reply-to: Ian White GM3SEK <gm3sek@ifwtech.co.uk>
Date: Thu, 14 Apr 2011 08:31:48 +0100
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Jim Thomson wrote:
>
>###  The only part you have not factored in is...... the blower takes 
>time to get to max speed., nor resistance of the bag opening up.  I 
>think the folks in the UK years ago were using those dry cleaner bags. 
>The dry cleaning folks will probably give u a few.... minus the hole 
>through the top !    Even then,  your results  will err on the side of 
>caution, since the actual time to inflate the bag will be slightly 
>faster, IF the blower was already up to speed.
>

No, Jim N7CXI had it right: let the blower come up to speed first, and 
*then* clap the deflated bag over the outlet.

A simple cardboard adapter plate allows quick attachment without leaks.


-- 

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
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