Date: Thu, 24 Feb 2005 12:36:00 -0500
From: Finn Lassen <finn.lassen@verizon.net>
Subject: Re: [FlyRotary] Re: Racemate alt/water pump
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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I like the idea. Rivit/bolt the rotor with the magnets onto the flex 
plate and mount the stator on the PSRU mount plate.

I'm a bit worried how well the mags will stay put glued onto the rotor 
(heat and vibration).
I would probably pull the wires from the coils into the cockpit and have 
redundant voltage regulators (that can be isolated with switches). 
You'll fry your electronics if the series power transistor in the 
voltage regulator shorts.
Other than the mags, I would think that the regulators would be the 
weakest part.

What would be the total current draw of the following in the 3000 - 4500 
RPM range?
One EFI pump
EFI including ignition coils and injectors.
One EWP.

Finn

Ernest Christley wrote:

> We don't have the problem that alternators were designed to fix.  We 
> spend a very insignificant amount of time at idle.  Our systems will 
> probably be using partial battery power starting on downwind as we 
> begin the decent until we line up on the numbers and firewall it for 
> the next takeoff.  I'll gladly trade that small drain for the 
> simplicity of a generator, and I'll monitor my batteries carefully to 
> account for it.