Paul

I too am building a Berkut. I'll be putting the mistral G-300 on mine
I had to do a complete rebuild on my airplane. The workmanship was so
bad on it that I couldn't even save the wings. I have some spare parts.
we are almost on the gear now. I can help as well with whatever he needs.

Tony


Do they still make the berkut and wouldn't a three rotor be two
much for the air frame? There's a guy with a similar design that
gets.  250 +  at  altitude  with an  0- 200.

Clifton

You are speaking of Klaus and that is a variez which is smaller
than a Berkut. The O-200 is highly modified and Klaus has spent
1000 of flight hours refining the aerodynamics. His hangar is
directly across the taxiway from mine so I know.


The Berkut is designed for an O-540.

Paul Lamar

Paul
I know this is semantics but it wasn't designed for a 540 per-say.
It was a 360 airplane from the get go. They just figured out how to
stuff a 540 under the hood. By way of new cowlings, and moving the
battery to the nose. I flew in Dave's Berkut with the 540 and holy
cow that thing is fast, and it's not a true 300 hp 540, more along
the lines of 270hp. I can only imagine what an actual 300 hp rotary will do.

Tony

We had a guy here at SZP build a O-540 Berkut but unfortunately he crashed
it after only a few flights when the engine quit on final. Nobody was killed.

More HP might help the climb but the top speed is proportional to
the cube root of Horse Power. For top speed you need to focus on
low drag.

Paul Lamar ...No rotor no motor.

The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Youtube key word UTUBPLEASE
Copyright 1998-2008 All world wide rights reserved.