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Cessna erector set flap switch, why?

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CardinalNSB(at)aol.com
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Posted: Wed May 07, 2008 6:20 am Post subject: Cessna erector set flap switch, why?

My Cessna flap switch looks like my 4th grade erector set science project,  open contacts, bakelite or something, huge, scary, lots of cross wires.

  

 Not considering the FAA issues, would a 20 amp Eaton mom off mom be a good  choice as far as electrical/physical qualities?  I see other Cessnas used  the mom switches.  Is my 177 flap motor (probablly the same as 172?)  something special in its design that the "open erector set architecture" is  necessary?

  

 Thank you all, Skip



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nuckolls.bob(at)cox.net
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Posted: Wed May 07, 2008 9:51 am Post subject: Cessna erector set flap switch, why?

At 10:16 AM 5/7/2008 -0400, you wrote:



 	  Quote: 	
		  My Cessna flap switch looks like my 4th grade erector set science project, 

open contacts, bakelite or something, huge, scary, lots of cross wires.



Not considering the FAA issues, would a 20 amp Eaton mom off mom be a good 

choice as far as electrical/physical qualities?  I see other Cessnas used 

the mom switches.  Is my 177 flap motor (probablly the same as 172?) 

something special in its design that the "open erector set architecture" 

is necessary?



Thank you all, Skip


	


   Yeah, I vaguely remember that thing. I think at the time

   the flap control system of choice used a pair of microswitches

   mounted on the flap handle . . . the switches were actuated

   by a cam attached to the flap extension mechanism by a

   Bowden control cable. A pretty simple, on/off servo system

   that was easy to build and maintain.



   I don't recall now how the switch was used on the 177.

   Do you have a flap system schematic from the maintenance

   manual that you could share with us?



   Bob . . .

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