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Engine comparision chart

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b.carl@sympatico.ca

Joined: 20 May 2008
Posts: 77

Posted: Sun Oct 12, 2008 3:32 pm Post subject: Engine comparision chart

Chris.

 I have to comment on the fuel flow numbers given  for the Rotax 912 in your post. My 701/912 amphib with a WD three blade  70"regularly gives me:

      Prop Pitch (At Tip)      RPM     Fuel Flow

            8.5'                       5000      15-16 LPH

            9.5'                       4800      13-14 LPH

 This is measured consumption on several Xcountry  flights two of them from the Ottawa Canada area to Oshkosh. I have ordered  a GSC in flight adjustable with WD blades and hope to improve on fuel flow and  overall performance. Anyone with experience with this prop please comment. Right  now I am looking for 8 mm X 1.25 mm pitch metric bolts to mount the prop to  the 912 hub. I don't have exact dia yet but shank is not more than 12 mm and  thread 25 mm. Anyone with a source please advise.

 We are getting beautiful 20'C weather in the land  of the freeze and it's Thanksgiving Day tomorrow,

 Regards

 Carl

  

  

  

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