Message-Id: <5.0.0.25.2.20020325141505.00a5ff50@pop3.olsusa.com>
Date: Mon, 25 Mar 2002 14:21:18 -0500
To: lancair.list@olsusa.com
From: Paul Kapcin <pkapcin@olsusa.com>
Subject: PropJet
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Reply-To: lancair.list@olsusa.com

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Reposted for :"Lance" <lancen@lancair.com>

      Here=92s a short note to you all, and by the way, nobody is being=20
=93quiet=94 at the factory, just hard at work =96 simply ask and ye shall=20
receive.  It=92s also worth noting that we didn=92t have upholstery in the=
=20
PropJet either so there must have been some =93upholstery problem=94 as=20
well!  Actually, the new, revised version of the 601E that Walter agreed to=
=20
build for us has a new bleed-air source that we much prefer.  That was the=
=20
reason for not
installing pressurization until now =96 we got the new engine a few weeks=20
ago. That engine is now installed and after preliminary flight tests, this=
=20
new bleed air source only raises the ITT by 8 degrees and the =93hot and=20
High=94 mod to the engine actually drops the ITT by 20 =96 30 degrees so it=
=20
looks to be a great version.  Consequently, we=92re quite a bit ahead of the=
=20
power game with this greatly enhanced engine.  Pressurization is looking to=
=20
be quite simple now, with no flow-pack required.  Standard new airframes=20
should see 125 =96 127 gallons total.  In a perfect world with a 45 min. IFR=
=20
reserve, climbing to FL240, one could reach out 880 nm, if you slowed to an=
=20
economy cruise, you=92d go even farther but you don=92t buy this plane=
 planning=20
to slow down! Interesting: The direct operating cost for an 800 mile trip=20
is nearly identical between the piston and turbine, less than twelve=20
dollars more for the PropJet.  How possible you say?  The overhaul cost /=20
hr is actually less for the Walter, fuel cost/gallon is less, tires and=20
brakes need less replacing (switching into beta on touchdown is very=20
effective), and oil consumption is less (simply change every 300 hrs and=20
there=92s virtually no consumption). With a far lighter engine on one side=
=20
and more fuel that=92s heavier on the other, there is another interesting=
 way=20
to look at things: For any given long leg (say 800 nm) with all else equal,=
=20
you=92ll be taking off 125 lbs heavier in the PropJet =96 but you=92ve got=
 twice=20
the available hp! I think that will get the classic =93yippee=94 from good=
 old=20
Roy Lopresti!   But  the part I really like is knowing that everything is=20
smoothly spinning in  the same direction inside this engine, a comforting=20
thought to an old guy like me!  If you think we =93at the factory=94 are=
 jazzed=20
with this new model Lancair =85 you=92re right!
  Lance


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