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Date: Tue, 28 Nov 2006 17:18:55 -0700
From: Bill Dube <William.P.Dube@noaa.gov>
Subject: Re: [FlyRotary] Re: Competely Off topic, but Nifty
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Motor, not engine. :-)

Typically, fireballs come off the brushes and strike the arc between 
conductors (like the brush rigging and a terminal stud.) It this case, 
we either picked up some FOD from the track (most likely) or we 
vaporized one of the motor leads (brush "shunt" wire) by overloading it.

Each of these motors sees as much as 1000 amps at over 200 volts. They 
are rated at 23 HP continuous, and we are humping about 175 HP into them 
for a few seconds.

This looks spectacular, particularly at night, but it is kind of like 
burning a piston in regular drag racing. It isn't something you would do 
on purpose, but it is relatively routine.

Bill Dube'

Bulent Aliev wrote:

>
> Monster bike! How do you plasma an engine?
>
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