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1. 04:06 AM - Re: Turbo Commander 777? (Barry Collman)
2. 04:10 AM - Re: Re: Turbo Commander 777? (Barry Collman)
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Subject: | Turbo Commander 777? |
Hi Keith,
As far as I=99m aware, the Garrett engine was the first choice for
the 680T.
Neither Ken Hale nor Bill McGinnis have mentioned any other engine being
considered.
So, hopefully, the use a the PT6 was indeed Urban Legend!
Best Regards,
Barry
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of Keith S.
Gordon
Sent: 27 April 2015 16:02
Subject: Re: Commander-List: Turbo Commander 777?
Sir Barry,
I was hoping you'd weigh in with some history. Question: If the PT-6
was installed on a 680T, then it was already a production turbine model.
Swearingen was always busy modifying production aircraft, so it would
make sense he would attempt a re-engine program for the rather anemic
pre-Century 331 engines.
Did the factory go straight to Garret engines? I had heard, and it's
probably Urban Legend, that the PT-6 was the first installation.
~KG~
Life is not simple anywhere. Probably less so elsewhere.
KHND RNAV Lead
FAASTeam, Las Vegas
NBAA Access Committee, Chairman
Las Vegas Airspace Users' Council, NBAA Rep
Las Vegas RNAV Optimization Work Group, NBAA Rep
Las Vegas Class B Redesign Committee, NBAA Rep
-----Original Message-----
From: Barry Collman <barry.collman@air-britain.co.uk>
Sent: Mon, Apr 27, 2015 5:25 am
Subject: RE: Commander-List: Turbo Commander 777?
Hi Keith,
Indeed, the PT6A-20 engine was tested on a Commander but not, to the
best of my knowledge, on a 680FL but on a 680T.
This was s/n 1583-35 N6523V and an Experimental CofA was issued on June
2nd 1966 and STC SA710SW issued to Swearingen on October 31st 1966.
However, the factory discovered that the exhaust heat had damaged the
leading edge of the wing and subsequent investigation showed degradation
of strength in the aluminum structure clear back to the front spar.
The aircraft was declared unairworthy and never flew again.
Best Regards,
Barry
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com
<mailto:owner-commander-list-server@matronics.com?> ] On Behalf Of Keith
S. Gordon
Sent: 27 April 2015 02:42
Subject: Re: Commander-List: Turbo Commander 777?
Adam,
One of a long line up of 680 or 690 series Commander re-engine ideas
that never got off the ground, at least in a figurative sense.
The original turbine match up was PT-6 engines on the 680FL airframe.
The specific range was terrible; a switch to TPE-331 series was made.
Don't know if the fuel specifics for the Walters are better than the
typical PT-6. If they're not, there might be too much of a sacrifice on
range.
Keith S Gordon
Life is not simple anywhere. Probably less so elsewhere.
KHND RNAV Lead
FAASTeam, Las Vegas
NBAA Access Committee, Chairman
Las Vegas Airspace Users' Council, NBAA Rep
Las Vegas RNAV Optimization Work Group, NBAA Rep
Las Vegas Class B Redesign Committee, NBAA Rep
-----Original Message-----
From: stratobee <adam@adamfrisch.com>
Sent: Sun, Apr 26, 2015 5:58 pm
Subject: Commander-List: Turbo Commander 777?
This
is an interesting link to a company that wanted to put Walter 601
engines on the
Commander, pair it with a 5-blade MT prop. Site hasn't been updated
since 2000,
so probly not much came of it.
Anyone know naything more about this project?
Also, what are those winglets? Are they proprietary or some alternative
winglet
to the normal ones you
see?
http://www.americanwestaircraft.com/commander.html
Also, has there
ever been any talk of STCing the MT 5-blade prop for the Turbo
Commanders? The
MU-2 has that option and it's the same engine..
--------
Adam
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http://forums.matronics.com/viewtopic.php?p=441356#441356
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Subject: | Re: Turbo Commander 777? |
Hi Adam,
If there is a shot of N55JS with the 5-blade props, then so far it's
eluded being included in my collection.
Best Regards,
Barry
-----Original Message-----
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of
stratobee
Sent: 27 April 2015 20:58
Subject: Commander-List: Re: Turbo Commander 777?
<adam@adamfrisch.com>
N55JS had an inflight breakup after being overloaded 1000lbs in bad
turbulence. Don't think the props contributed, but who knows. Is there
a photo of it with the 5 blade MT's?
--------
Adam
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=441395#441395
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