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Woodcomp motors

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kheindl(at)msn.com
Guest

Posted: Mon Mar 30, 2009 6:20 am Post subject: Woodcomp motors

 

 I just had another look at the selection of Woodcomp motors I have in my box of 'useless' items.

 Two are still in their original packaging. They are very small and were sent in error. I have no idea exactly which prop model they would be used on.

 The information on the box is : Bosch C Skil C Dremel. Made in Mexico C 2.4/3.6V. The name on all motors is Johnson. So my assumption is that these motors are made by Johnson C and used by at least the 3 named tool manufacturers for their power tools. Nothing wrong with that C but the claim that their motors are Bosch motors is a little bit misleading.

  

 Karl

  

 



 

 

  [quote][b]

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frans(at)paardnatuurlijk.
Guest

Posted: Mon Mar 30, 2009 6:55 am Post subject: Woodcomp motors

Karl Heindl wrote:



 	  Quote: 	
		   I just had another look at the selection of Woodcomp motors I have in my

 box of 'useless' items.

 Two are still in their original packaging. They are very small and were

 sent in error. I have no idea exactly which prop model they would be

 used on.

 The information on the box is : Bosch, Skil, Dremel. Made in Mexico,

 2.4/3.6V. The name on all motors is Johnson. So my assumption is that

 these motors are made by Johnson, and used by at least the 3 named tool

 manufacturers for their power tools. Nothing wrong with that, but the

 claim that their motors are Bosch motors is a little bit misleading.


	


Maybe they use a different brand for the 2.4 Volt motors than for the 12

Volt motors?



Anyway, I ordered a Woodcomp prop, so I will take a look inside to see

what's in.



-- 

Frans Veldman

- The Matronics Europa-List Email Forum -

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kheindl(at)msn.com
Guest

Posted: Mon Mar 30, 2009 8:34 am Post subject: Woodcomp motors

Frans C

 I was not trying to imply anything about the voltage C just passing on some information. I have seven Woodcomp motors C all are Johnson C and all run on at least up to 9V. I don't think the controller sends out 12V anyway C  but Mark could probably elaborate on that.

My concern is not the voltage C but do these motors generate enough torque to turn the blades at maximum rpm ? Apparently they do C because no-one else has reported any failures.

 It's just one of those things. I am sure that you will be very happy with your propeller.

 Karl

 	  Quote: 	
		   Date: Mon C 30 Mar 2009 16:52:27 +0200

 From: frans(at)paardnatuurlijk.nl

 To: europa-list(at)matronics.com

 Subject: Re: Woodcomp motors

 --> Europa-List message posted by: Frans Veldman <frans(at)paardnatuurlijk.nl>

 Karl Heindl wrote:

 > I just had another look at the selection of Woodcomp motors I have in my

 > box of 'useless' items.

 > Two are still in their original packaging. They are very small and were

 > sent in error. I have no idea exactly which prop model they would be

 > used on.

 > The information on the box is : Bosch C Skil C Dremel. Made in Mexico C

 > 2.4/3.6V. The name on all motors is Johnson. So my assumption is that

 > these motors are made by Johnson C and used by at least the 3 named tool

 > manufacturers for their power tools. Nothing wrong with that C but the

 > claim that their motors are Bosch motors is a little bit misleading.

 Maybe they use a different brand for the 2.4 Volt motors than for the 12

 Volt motors?

 Anyway C I ordered a Woodcomp prop C so I will take a look inside to see

 what's in.

 -- 

 Frans Veldman

&gt======================

&gt============

 	  Quote:

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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frans(at)paardnatuurlijk.
Guest

Posted: Mon Mar 30, 2009 10:25 am Post subject: Woodcomp motors

Karl Heindl wrote:



 	  Quote: 	
		   I was not trying to imply anything about the voltage, just passing on

 some information. I have seven Woodcomp motors, all are Johnson, and all

 run on at least up to 9V. I don't think the controller sends out 12V

 anyway,  but Mark could probably elaborate on that.


	


The controller uses Pulse Width Modulation. The pulses are 12V, but the

average depends on the setting, i.e. a setting of 50% means that the

motor, for all practical purposes, will see an average of 6 Volts.



 	  Quote: 	
		   My concern is not the voltage, but do these motors generate enough

 torque to turn the blades at maximum rpm ? Apparently they do, because

 no-one else has reported any failures.


	


Depends on the blades, the distribution of the load over the blades

(much like the torque required to turn the Europa tailplanes, i.e.

neglectible). Mark warned me that the scimitar blades are more difficult

to turn because of their asymmetrical load. As the scimitar blades offer

no advantages (according to Woodcomp) over the normal blades, I have

choosen the normal blades.



 	  Quote: 	
		   It's just one of those things. I am sure that you will be very happy

 with your propeller.


	


I hope so.  It would be nice if one could just swap a propeller

during flight for comparison. If my Europa turns out to perform well,

there are a dozen of things that could be the cause, it wouldn't be easy

to contribute that to a single item. And of course, it could well be

possible that it is going to be a dog.



-- 

Best regards,

Frans Veldman

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