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Forum: RC Jets

05-13-2015, 02:32 PM

Replies: 91

Does anyone still fly nitro Ducted Fan anymore?

Views: 20,673

Posted By f16man

With the dynomax in the little Yellow A4 os 77...

With the dynomax in the little Yellow A4 os 77 powered with every other stator blade removed she spins up real good and very fast for a nitro ducted fan, probably 150 mph, the 91 has more power for...

Forum: RC Jets

05-07-2015, 08:39 AM

Replies: 91

Does anyone still fly nitro Ducted Fan anymore?

Views: 20,673

Posted By f16man

Yup the 91 runs a Byron fan pretty good but is...

Yup the 91 runs a Byron fan pretty good but is not up to the rpm needed for the smaller fans imo....

Forum: RC Jets

05-07-2015, 08:36 AM

Replies: 91

Does anyone still fly nitro Ducted Fan anymore?

Views: 20,673

Posted By f16man

I cant remember the exact PART # but the os 77 is...

I cant remember the exact PART # but the os 77 is what I used . I think they are a #10 I will measure the venturie and post I think the os 90 size is the one but I will make sure , it has been a long...

Forum: RC Jets

05-07-2015, 08:26 AM

Replies: 91

Does anyone still fly nitro Ducted Fan anymore?

Views: 20,673

Posted By f16man

Yup the stock rod is bushed I machine my own...

Yup the stock rod is bushed I machine my own titainium rod with a needle bearing on the crank end works well as long as the piston pin boss hangs in there, don't ask me how I know .....ha ha........

Forum: RC Jets

05-06-2015, 11:30 AM

Replies: 91

Does anyone still fly nitro Ducted Fan anymore?

Views: 20,673

Posted By f16man

Byron f16, yellow A4, Byron A4 both byrons have...

Byron f16, yellow A4, Byron A4 both byrons have rossi 81s little A4 os77 found the larger size won't hit the rpm range and when they do they wont stand up too long, my os 77 on the dynomax will spin...

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