Mailing Lijst flyrotary@lancaironline.net Bericht #43671
Van: Kelly Troyer <keltro@att.net>
Onderwerp: Re: [FlyRotary] Fan switch
Datum: Sun, 10 Aug 2008 22:19:29 +0000
Aan: Rotary motors in aircraft <flyrotary@lancaironline.net>
Thanks Lynn !!
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold



 
-------------- Original message from "Lynn Hanover" <lehanover@gmail.com>: --------------

In a message dated 8/10/2008 9:49:55 A.M. Eastern Daylight Time, keltro@att.net writes:
 Steve,
     I believe it was Lynn Hanover that said if you connect the power leads
(+ & - ) together when fan is not powered that it will not freewheel in flight.
 
    Jump in here Lynn and give us one of your sketches on how to wire it
so as not to accidentally switch B+ (12 volts) to ground !!.........
 
 
From racing slot cars. Shunting the motor wires, is the brakes on slot cars.
 
When un-powered but spinning, the permanent magnet motor becomes a generator. Shunting the output
produces current flow in opposition to the running direction of the motor. The fan will turn, only very slowly.
 
Lynn E. Hanover
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