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Search: Posts Made By: grbaker
Showing results 1 to 6 of 6
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Forum: RC Jets
05-22-2015, 01:49 AM
Replies: 91
Views: 20,672
Posted By grbaker

Found these specs for the OS .91VRDF ...

Found these specs for the OS .91VRDF

Displacement: 0.91 cu in
Bore: 27.7mm (1.09")
Stroke: 24.5mm (.97")
Max Output: 4.8 BHP at 22,000 RPM
Practical RPM Range: 2,500 - 25,000 RPM
Forum: RC Jets
05-13-2015, 02:56 PM
Replies: 91
Views: 20,672
Posted By grbaker

Ahhh, now it makes sense. The .91 will definitely...

Ahhh, now it makes sense. The .91 will definitely turn more RPMs than a .77. I have seen significant speed increases when upgrading from .77 to .91. Night and day difference between a .77 powered...
Forum: RC Jets
05-07-2015, 11:07 AM
Replies: 91
Views: 20,672
Posted By grbaker

I have never had any issues running the .91 in a...

I have never had any issues running the .91 in a Dynamax and definitely more power than the .77 in a Dynamax.
Forum: RC Jets
05-07-2015, 01:59 AM
Replies: 91
Views: 20,672
Posted By grbaker

You can't turn much rpm for very long with the...

You can't turn much rpm for very long with the stock rod in a .77. I have bent a couple of them in Byron fans that don't turn as many rpm as they do in the Dynamax.

Another trick with the OS.77...
Forum: RC Jets
05-04-2015, 03:12 PM
Replies: 91
Views: 20,672
Posted By grbaker

That's it, right there.

That's it, right there.
Forum: RC Jets
05-04-2015, 08:46 AM
Replies: 91
Views: 20,672
Posted By grbaker

My grandson flies a JMP Starfire II with a...

My grandson flies a JMP Starfire II with a Dynamax fan and OS.91. If I can get some other projects out of the way I am going to complete my JMP F-4 Phantom with twin Dynamax fans and OS .91s.
Showing results 1 to 6 of 6


 
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