Mailing List flyrotary@lancaironline.net Message #29342
From: Russell Duffy <russell.duffy@gmail.com>
Subject: RE: [FlyRotary] Anatomy of an almost crash.
Date: Mon, 16 Jan 2006 08:28:26 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
I had to set my RV-6 down on highway 395 near Bishop Tuesday, and here is the story. Mostly things I could have done better, some that I did right or otherwise got lucky. It is an RV6 tip up with a turbocharged Mazda rotary engine.  
 
Hi Dave,
 
Congratulations on doing enough things right to avoid damage, or injury to yourself, or others.  With so much going against you, I'm not sure you could hope for any better outcome.  I don't think I've ever heard of anyone losing oil, water, and the alternator all at once.
 
It will be really interesting to hear what you find when you look at the engine later.  Does the engine have coolant, or oil in it now? 
 
If there's coolant, then I'm wondering if the stop leak plugged the passages in the radiator enough that the thicker Evans NPG couldn't circulate.  If the engine overheated enough to cause the side housings to warp, then it would have taken out the oil seals, and side seals.  That would cause the loss of compression, and loss of oil through the exhaust, and breather tube.  I'm not sure how long it would take to dump all your oil that way.  I know when I cranked mine after the oil out incident, it looked like the plane had a smoke system installed, so it might not take long.   
 
The apparent alternator failure is also a mystery.  I can't imagine why it would pick that time to die, or blow a fuse.
 
I'm afraid you may not find too many re-usable parts inside this engine :-(
 
Good luck getting it home.  A flat bed wrecker is great for hauling fuselages.  It will need to be one of the longer ones though, 21 ft I think, which not everyone around here has.   That might be cost prohibitive depending on how far you have to go.  Otherwise, a flat car hauler type trailer would probably work.   
 
Rusty
 
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