Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

o.S. Max 61 VR LS long stroke

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Old 01-23-2015, 09:53 AM
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f3d
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Wink o.S. Max 61 VR LS long stroke

Here a new 10ccm O.S. VR LS speed engine built with O.S. parts from different centuries.

1. main case from O.S. VF (or VR ) engine 1975
2. front case with crank shaft ( 24mm stroke ) from O.S. max 77 DF 1979
3. piston and cylinder O.S. RF "Hanno" here AAC from Herny Nelson, outlet time was 165 degree now 190 degree 2005, 23mm bore and 24mm stroke
4. bag plate O.S. max 91 DF 2005

All together is a O.S. max 61 VR LS, 23mm bore and 24mm stroke, All standard 61 engines have 22mm stroke and 24mm bore.

Have fun!
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Last edited by f3d; 01-23-2015 at 11:55 PM.
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Old 01-23-2015, 02:39 PM
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Pylonracr
 
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You did build an extra one for me right?
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Old 01-24-2015, 05:30 AM
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Sweet!

Who is casting those venturi's Michael?
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