"1/2 A" & "1/8 A" airplanes These are the small ones...more popular now than ever.

New Drum Rotor Cox 049 Engine

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Old 08-29-2013, 10:59 AM
  #26  
redneckjetboat
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just like silvaire, i would really like to know
how you are driving that rotor?
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Old 09-03-2013, 06:58 PM
  #27  
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Originally Posted by t587y28 View Post
Can this crank be use for an aircraft engine? I read some ware that they are stronger than the surestart engine cranks. Thank you for your time, and info.
Yes I did so decades ago when we (kids) discovered that the car cranks were pretty well unbreakable. Used the crankcase and the crank together though.
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Old 09-03-2013, 07:09 PM
  #28  
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Originally Posted by redneckjetboat View Post
just like silvaire, i would really like to know
how you are driving that rotor?
If you look carefully you will see that the crankpin fits into it and drives it. Standard method.

Curiously MZ developed / used rotor induction, as well as inventing Exp chambers for their winning race motos.. it was State of the 2 stroke Art in 1955 :-)
Currently Reeds produce Mo' power.

Last edited by danilo-2; 09-03-2013 at 07:11 PM.
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Old 09-06-2013, 05:25 PM
  #29  
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Just thinking out loud here, kind of. Wouldn't a rear rotor style with a disc have more crankcase stuffing than a drum rotor? Kind of like the old ST and Rossi .15's. It may be a little faster than say a TD with all things being equal like the TD cyl and head. There would be a bit more friction, that's all. I am not sure the crank pin is long enough to catch on a rotor to drive it. Am I missing something again?
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Old 09-13-2013, 06:38 AM
  #30  
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There is a bunch of machine work on that back plate
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Old 01-20-2018, 02:58 PM
  #31  
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Default Cox RR1 "Rear Rotary Valve" (Need Help)

I have a old Cox RR1.049 engine in my collection... I need your help... I'm looking for the Rear Rotary Valve (part) that's unique to the RR1 engine. Any recommendations, can anyone help me? Thanks, Rob
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