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Re: Europa-List: Woodcomp Propellers

Subject: Re: Europa-List: Woodcomp Propellers
From: Lisbet og Gert Dalgaard <lgds@post6.tele.dk>
Date: Wed, 25 Mar 2009 17:22:16

Thank you very much for the information, David.
Regards Gert
OY-GDS


Den 25/03/2009 kl. 16.41 skrev David Joyce:

> I am slightly reluctant to restart this thread, but Woodcomp have  
> just sent me a list of comments and corrections to some of the  
> statements produced in the last two weeks:
> 1) All Woodcomp VP props have mechanical stops as well as electrical  
> stops. For normal props these mechanical stops are at the fine &  
> course limits, but for reversible props a fine limit mechanical stop  
> is not possible. Instead there is a mechanical stop at the end of  
> the reverse range, and similar arrangements apply to the feathering  
> prop.
> 2) The electric motor of the SR3000 is supplied by Bosch and rated  
> at 12 volts
> 3) The microswitches are manufactured by Matsuschita and are rated  
> at 16 amps and the diodes are rated at 5 amps. The usual working  
> current through the motor is 4-5amps, but this current only flows  
> through the diodes for 0.2-=0.3 secs
> 4) The microswitches at the fine pitch stop are connected in series  
> and activating either one cuts the current through the normal range  
> circuit operating through the outer and middle rings. They state  
> that the only way to overwhelm the fine stop system and to proceed  
> to superfine pitch is to apply a voltage to the reverse system,  
> operating through the outer and inner pick up rings, and they do not  
> know of any mechanical or electrical failure in their systems which  
> could cause this.
>          I have no financial interest in Woodcomp, but as the first  
> person to get a Woodcomp prop accepted by the PFA, have become  
> someone they talk to in the UK!
>         Regards, David Joyce, G-XSDJ



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