Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!hao!noao!mcdsun!nud!anasazi!tower!john
From: john@tower.UUCP (John Moore)
Newsgroups: sci.electronics
Subject: Re: 400 Hz transformers
Message-ID: <137@tower.UUCP>
Date: Thu, 15-Oct-87 15:52:16 EDT
Article-I.D.: tower.137
Posted: Thu Oct 15 15:52:16 1987
Date-Received: Sun, 18-Oct-87 11:53:36 EDT
References: <726@neoucom.UUCP> <2103@kitty.UUCP>
Reply-To: john@tower.UUCP (John Moore)
Organization: Anasazi Inc, Phoenix AZ
Lines: 21
Keywords: Mostly to save weight

In article <2103@kitty.UUCP> larry@kitty.UUCP (Larry Lippman) writes:
>In article <726@neoucom.UUCP>, wtm@neoucom.UUCP (Bill Mayhew) writes:
>U.S. Navy aircraft during WW II.
>	Stable power frequencies could only be produced by means of a DC
>powered inverter; it is obviously impossible to produce a constant frequency
>by an alternator that is directly driven by an aircraft engine.  However,
>to "keep things simple", engine-driven alternators were indeed used on
><>  Larry Lippman @ Recognition Research Corp., Clarence, New York
	It is not at all impossible to produce a constant frequency by
and alternator directly driven by an aircraft engine. I used to fly
in the US Navy P-3 Orion, a Turboprop aircraft. The engines ran at
constant speed and were in fact PHASE LOCKED at the A/C power
distribution phase. They ran alternators that directly powered the
equipment.


-- 
John Moore (NJ7E)
(602) 861-7607 (day or evening)
The opinions expressed here are obviously not mine, so they must be
someone else's.