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Old 09-17-2008 | 07:15 PM
  #3062  
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krproton
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From: Champaign, IL
Default RE: DL-50 engine

Okay, so I took the day off today to get some flying in to practive for the North Central IMAC Regionals. Hadn't been able to get in enough flying last few weeks.

I brought out my Extra and my Edge - both outfitted with DL 50s. Flew the Edge first - still on break-in fuel. Was running a Menz 22 x 8 @ 7,000rpm. This plane, unlike my Extra, I'm afraid to go much above half-throttle when I'm straight-and-level. Maybe this DL is a bit stronger for some reason, maybe the wing on the Edge is a bit thinner (quite sure it is), fewer "squares" (wing area), whatever. This thing is a little rocket ship!

Anyway, was going to wait until the engine was broken-in before switching to the 3-blade, but I mounted it anyway. Besides, I'm hardly ever using full - throttle, so should be okay.

So compared the RPM with the 3-blade to the 2-blade (my 3-blade is a Mejzlik 20 x 10 by the way). Well, the 3-blade was pulling 10 grand! Oops. No. Forgot to switch to 3-blade setting on my tach!

Okay, 6,800. That's better.

Anyway, the thing still pulls like a whatever and it flies just great. Seems a little "happier" on the 3-blade with less torque effect and slower down lines. And I like the additional 1" ground clearance.

Anyway (guess I said that already), I really like the 3-blade and it seems to work well. Prolly get even more RPM (not that I need it) as the engine continues to break-in and I switch to the 80:1 Amsoil Saber.