OS VR .77 DF Ducted Fan glow - RC Groups
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Dec 13, 2009, 08:16 AM
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OS VR .77 DF Ducted Fan glow

I bought a OS VR .77 DF Ducted Fan glow, but Im still dont know what kind a Jet I can put it on....

Can You help out?

Plense send some links.....
Last edited by Tygron; Dec 13, 2009 at 08:17 AM. Reason: passing by discussion
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Dec 13, 2009, 01:36 PM
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Look at Jet Hanger Hobbies Dennis
Jan 08, 2010, 10:55 PM
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Many of the OS 77's were designed for the Byron Fan and came with a large head. If you have a small head you can use it in a dynamax fan or equiv. That being said, the 77 has a propensity to shell the con rod. Probably because the con-rod clearance is too small and not .004 like the OS 91. There was a co. who made a living on making replacement conrods, I believe it is performance specialties. The OS 91 is a beast in comparison. Is that too much info.
Jan 09, 2010, 01:07 AM
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Hi, I have run Rossi ,Os ,ops,Cmb, K@ B ,Bob violet , engines in the past and had hardly any broken rods but made sure good clearance on rod big end and alwayes used qualitiy castor oil @ 25% .Regards Ken Jack

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