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Old 10-05-2009 | 10:03 PM
  #28  
Gray Beard
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Joined: Apr 2003
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From: Hemderson, NV
Default RE: Too pretty to maiden?


ORIGINAL: brett65


ORIGINAL: RCKen


ORIGINAL: brett65

I appreciate the offer Ken, I wouldn't want you to have to drive this far just to maiden a plane for me, or me drive that far either. I think I can handle it, its just that when it comes to mechanical things that cost me money I'm a real pessimist. If it does fly like a low wing sport plane then I should be fine. I'm in no hurry as I do have to get the cg fixed and do some actual runtime of the engine on the plane.
It's not that far to drive, and I definitely don't mind!!!! I wouldn't have offered if I didn't want to do the drive!!!! [img][/img]

The offer is there if you need it, just let me know

Ken
I may take you up on it Ken, we'll see how things go.

A couple questions though: She (OS70 FS 1) is turning 10K easily with the 12x6 3 blade and seems rich. Do I need more prop?

I can't seem to get her to idle nice and low, it is cold and really misty so the weather isn't ideal. Could that be it? It idled well on the test stand.
Are you using a TACH to see what the idle RPM is?? The working range on the engine is 2300 to 12,000. The 10,000 sounds about right with that prop. If you tuned the low end with the engine upright then installed it in the plane inverted it may be just a tad fat on the low end. If you are using a MAS prop it may be too light. My OS .70FS idled at 1800 but I flew it on high idle at 2,200 using the APC 13X6 two blade. Sorry about the spelling but you will get the idea, a Graupner three blade may be a better choice if you are using the MAS?? They do idle better with a heavy prop.