Mailing List flyrotary@lancaironline.net Message #37694
From: Russell Duffy <rusty@radrotary.com>
Subject: RE: [FlyRotary] Re: Single rotor video
Date: Mon, 4 Jun 2007 22:03:16 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
What a great video. I ran it in slow motion. At one point I had impression that blade had flexed far enough to hit trailer! I would be very concerned for blade flex unless I had clear proof it has no long term effect.  
 
Hi Al,
 
Can't help but be impressed by the amount of movement :-)  I also sent the link to Warp Drive to see if they had any comment, but I'm not sure if they'll reply.  The Warp drive might survive this, but I don't think I'll be happy about it unless it can be toned down a bit.   
 
I was curious if video from in front would show the same effects. If it doesn't, possibly cause is related to fore/aft blade support. Not likely, but worth checking.  
 
I haven't videoed it from the front or rear, but I've watched it myself.  I can't see any funny business unless I'm directly to the side of the prop.  
 
FWIW, I did the break-in on my Rotax 582 today, and it has a 60" 3 blade Warp Drive prop.  I didn't see any fore and aft blade movement at all when at a steady speed, though I didn't video it to see the effect of speed changes.  
 
Rusty
   
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