Q-500 Racing Discuss AMA 428, AMA 424, and any other variants of Quickie 500 racing

428 prop

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Old 10-28-2011, 01:51 AM
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B.P.R.
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Default 428 prop

What Are the most used apc prop for 428 ?
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Old 10-28-2011, 03:15 AM
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Default RE: 428 prop

Lots of choices.

8.8x9.25
8.8.9
8.8x8.75
8.75x8.25N
8.75x8.5N
8.75x9W

Probably the most common, but there are others. Fred use to run the big 9.5NN as well.

8.25N was always my favorite, but used the 8.8x9.25 as well. Just don't get it lean on the ground, needs to be burping and nearly dying before getting in the air.
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Old 10-28-2011, 07:56 AM
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Default RE: 428 prop

BPR

When you asked that question on the German Pylon forum you specified FAI fuel. I am sure you realize we run 15% nitro here.

Denis
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Old 10-28-2011, 08:14 AM
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Default RE: 428 prop

Correct, without Nitro, results will be completely different.
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Old 10-28-2011, 08:49 AM
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Default RE: 428 prop


Quote:
ORIGINAL: djlyon

BPR

When you asked that question on the German Pylon forum you specified FAI fuel. I am sure you realize we run 15% nitro here.

Denis
Yes :-) i want know the most used whit nitro ( i ask here) and with fai fuel ( i ask in German forum) ;-)
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Old 10-30-2011, 10:04 AM
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Default RE: 428 prop


Quote:
ORIGINAL: daven

Lots of choices.

8.8x9.25
8.8.9
8.8x8.75
8.75x8.25N
8.75x8.5N
8.75x9W

Probably the most common, but there are others. Fred use to run the big 9.5NN as well.

8.25N was always my favorite, but used the 8.8x9.25 as well. Just don't get it lean on the ground, needs to be burping and nearly dying before getting in the air.
Many tnx !
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