Subject: Hartzel Prop
From: ACRE NL
Date: 11/15/2002, 11:19 AM


Ken Welter wrote:

 > > Heavy!


 Yes, but I got to fly in an IO-360 powered Cozy with one and the
takeoff felt like we were being
 fired out of a slingshot. This was push-you-back-in-your-seat
performance. Owner claimed it cut
 his takeoff roll in half. Cozy's are not known for stellar takeoff
performance.

 ...Chrissi

 Cozy Mk-IV 13B Turbo
 www.CozyGirrrl.com
 Chrissi@BlueMountainAvionics.com

   Hi Chrissi
   It is hard to compare apples to oranges as my coot a completely
different bird but most coots are flying with IO-360's with Hartzel
props and we are a dead match for water takeoff, however I do cheat
and use nitrous for about five seconds and cruise speed is a match
and I have better high altitude performance but they do beat me on
the climb out.
  I run a 13b naturally aspirated with a 5 blade warp drive and I know
that prop wont work well at high speed but I think with a good fixed
pitch prop on your turbo motor you should leave them in the dirt.

  Ken Welter
  http://homepage.mac.com/rotarycoot/

Ken checking the fuel. That little bit of blue showing behind the pilot's
seat
is the nitrous oxide bottle.

How's the new airplane coming Ken?

Paul Lamar

Just a nit note - Solly has an MT for his Super Pulsar 100 (IO240). he
installed it and
flew for about 4 hours, and put the fixed pitch wood Sensenich back on. He
said
that altho take off and climb were good, cruise (???) and top speeds were
down
about 10mph. (I suspect a bit of operator error) Vance J

Or perhaps pitch stop adjustment.

Paul Lamar
 
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