Mailing List flyrotary@lancaironline.net Message #9409
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Reality Check
Date: Sun, 4 Jul 2004 00:43:09 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

This seems somewhat in line with what others have reported as successful, but I am afraid of what high power on climb-out is going to do.

Hi Dave,
 
I wish I had a good answer for you.  I've never done a high speed taxi test (just don't believe they're a good idea), so I can't relate to your specific test.  I do know that I can tie the plane down, and warm it up until the oil reaches 130 degrees, then run full throttle for about 2 minutes before reaching 200 degrees on oil or water.   At actual climb speed, I don't think I could ever exceed 200 degrees. 
 
If you want peace of mind, I would suggest that you tie the plane up, and try a full throttle run.  You know that you should get at least 1000 ft/min climb, so you only need one minute of full throttle to get to pattern altitude.  Temps will come down quickly when you throttle back, so as long as you get to pattern alt, you're home free.  As others have suggested, try to pick a cooler time for your first flight, and don't build up any excess temp before takeoff. 
 
You can take significant comfort in the fact that you're flying an RV.  If you built the plane anywhere close to the way Van intended for it to be built, you will have no surprises from the airframe.  I've seen some pretty sloppy looking RV's, that I wouldn't personally fly in, but they still fly great.  The airframe won't let you down.  I always cringe when I hear of people who want to design their own airframe, AND install an alternative engine.  IMO, that's a combination that would require a professional test pilot.
 
Good luck,
Rusty (weather man forecasts max cruise speed, and some aerobatics tomorrow)    




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