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Forum: "1/2 A" & "1/8 A" airplanes

10-18-2004, 09:03 PM

Replies: 142

1/2a speed delta

Views: 13,092

Posted By Larry Driskill

RE: 1/2a speed delta

XP wrote: "Hey Larry....Have any props in the high pitch range ???? "

Mike Hazel (Washington state) makes carbon props. The upper prop is one of his and is about a 4&1/8 X 4&1/2. Maybe The...

Forum: "1/2 A" & "1/8 A" airplanes

10-17-2004, 09:14 AM

Replies: 142

1/2a speed delta

Views: 13,092

Posted By Larry Driskill

RE: 1/2a speed delta

Hey XP - Good Morning,

Is it an .049 or a .061?

Forum: "1/2 A" & "1/8 A" airplanes

10-16-2004, 10:08 PM

Replies: 142

1/2a speed delta

Views: 13,092

Posted By Larry Driskill

RE: 1/2a speed delta

Both the wrist pin and crankpin are larger on the Norvel. You best go huntin' for more Castor and more pitch . . .

Forum: "1/2 A" & "1/8 A" airplanes

10-16-2004, 09:35 PM

Replies: 142

1/2a speed delta

Views: 13,092

Posted By Larry Driskill

RE: 1/2a speed delta

J.M.

Only work the center portion. Don't touch the front and rear 1/8" to 3/16". And, you don't have to relieve the center very much either.

There will probably be a benefit only if the...

Forum: "1/2 A" & "1/8 A" airplanes

08-14-2004, 09:00 PM

Replies: 142

1/2a speed delta

Views: 13,092

Posted By Larry Driskill

RE: 1/2a speed delta

In my experience when using bladders with 1/2as the following are truisms.

1. Ideally, you need a fine thread needle. Probably about 100 threads per inch minimum. The KK (Kirn) needles for the...

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