Author Topic: Turboprop conversions – built and unbuilt  (Read 88570 times)

Offline Apophenia

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Re: Turboprop conversions – built and unbuilt
« Reply #135 on: March 31, 2011, 07:08:11 pm »
Drawing from Jacques Moulin's Aerophile blog, I've added the following:
http://aerophile.over-blog.com/

Beech UC-45 conversion to Beech-SFERMA PD-18-9 (Turboméca Bastan III)

Max Holste MH-152  conversion to MH-153 Turboméca Astazou II testbed

Nord 1102 Noralpha  conversion to SFERMA N-1110 Turboméca, Astazou testbed

Beech 95 Travel Air  conversion to Beechcraft-SFERMA PD-146 Turbo-Travel Air and production as PD-146 Marquis 1961

Offline Apophenia

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Re: Turboprop conversions – built and unbuilt
« Reply #136 on: January 07, 2013, 05:03:20 pm »
http://www.secretprojects.co.uk/forum/index.php/topic,1070.msg24965.html#msg24965
PISTON-TO-TURBOPROP -- TRANSPORTS sections updated with more details on Fairchild C-123 Provider turboprops. Iincludes the Mancro C-123T prototype and planned conversions in the US, a current US-South African joint venture proposal, and (thanks boxkite!) an early '90s US-Bulgarian joint venture project.


Offline Bill Walker

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Re: Turboprop conversions – built and unbuilt
« Reply #137 on: January 07, 2013, 05:19:12 pm »
Didn't see this on in the lists yet.  Avro Canada converted a Lancaster X to take two Orenda jet engines in 1950.  It was destroyed in a hanger fire in 1956, along with some other experimental aircraft.

http://www.flickr.com/photos/78215847@N00/3707441029/sizes/z/in/photostream/
Bill Walker

Offline Apophenia

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Re: Turboprop conversions – built and unbuilt
« Reply #138 on: January 08, 2013, 05:47:50 pm »
Thanks Bill! FM209 has now been added under PISTON WITH JET TESTBEDS
http://www.secretprojects.co.uk/forum/index.php/topic,1070.msg24962.html#msg24962

I was surprised to read that a Lancaster X PS-13 testbed was also considered (although I'd like to see a better source for that info).

Offline Jemiba

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Re: Turboprop conversions – built and unbuilt
« Reply #139 on: April 29, 2013, 11:07:45 pm »
Riley, Florida, US planned a turboprop conversion of the DH 104 Dove with
two Astazou engine with 560 hp each, only other external modification would
have been the swept fin. Estimated cruising speed : 480 km/h
 
(drawing and data from Der Flieger, October 1963)
It takes a long time, before all mistakes are made ...

Offline Jemiba

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Re: Turboprop conversions – built and unbuilt
« Reply #140 on: May 08, 2013, 12:05:41 pm »
A turboprop powered version of the trusted Do 28 was planned, too, but not realised.
http://www.secretprojects.co.uk/forum/index.php/topic,1911.msg187255.html#msg187255
It takes a long time, before all mistakes are made ...

Offline Jemiba

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Re: Turboprop conversions – built and unbuilt
« Reply #141 on: November 03, 2013, 03:32:03 am »
Already mentioned, but fightingirish and GTX found some photos of the Boeing YC-97J :
http://www.secretprojects.co.uk/forum/index.php/topic,11267.msg202415.html#new
It takes a long time, before all mistakes are made ...

Offline hesham

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Re: Turboprop conversions – built and unbuilt
« Reply #142 on: November 03, 2013, 03:49:29 am »
Riley, Florida, US planned a turboprop conversion of the DH 104 Dove with
two Astazou engine with 560 hp each, only other external modification would
have been the swept fin. Estimated cruising speed : 480 km/h
 
(drawing and data from Der Flieger, October 1963)


Great find my dear Jemiba,


sorry,I never saw this post before.

Offline fightingirish

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Re: Turboprop conversions – built and unbuilt
« Reply #143 on: November 08, 2013, 10:15:46 am »
Quote
Turbo Connie: Four R7V-1 Super Constellation transports ordered by the US Navy were modified during assembly as experimental turboprop-powered R7V-2s with four 5,550 shaft horsepower Pratt & Whitney YT34-P-12A engines. The aircraft was first flown in September 1954. Lockheed leased one of the R7V-2s back from the Navy to serve as a testbed for the Allison 501 turboprop engines used to power the L-188 Electra airliner. Nicknamed Elation (derived from combing Electra and Constellation), that aircraft was later delivered to the US Air Force as a YC-121F.
Picture & Source: Code One Magazines Photos - Turbo Connie
« Last Edit: November 08, 2013, 10:24:47 am by fightingirish »
Slán,
fightingirish

Slán ist an Irish Gaelic word for Goodbye.  :)

Offline GTX

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Re: Turboprop conversions – built and unbuilt
« Reply #144 on: November 29, 2013, 12:30:00 pm »

Lockheed P2V-7 (N7060X) [Conv] to  Hawkins & Powers 'turbine Neptune' (Allison T-56-A-14s, N138HP) "incomplete, project on hold." http://www.ruudleeuw.com/greybull-rp-may03.htm



Image of what this might have looked like.
« Last Edit: November 29, 2013, 10:38:21 pm by GTX »


Offline Apophenia

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Re: Turboprop conversions – built and unbuilt
« Reply #146 on: January 05, 2014, 07:43:18 pm »
Thanks for the additions folks! The Beech-SFERMA Maquis series, Dornier Do 28C, and Riley Turbo Executive have been added ... along with a pair of Canadian Seabee conversions to turboprop power.

Offline wybenga

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Re: Turboprop conversions – built and unbuilt
« Reply #147 on: January 23, 2014, 02:12:30 am »
A picture of an organization planning to convert Cessna P337s to apparent twin turboprop has been making the rounds in the Skymaster forum, I wonder if anyone here has any insight

Offline Apophenia

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Re: Turboprop conversions – built and unbuilt
« Reply #148 on: October 04, 2014, 09:27:55 pm »
Added: Vazar Aerospace's proposed Turbo Husky, a PT6A conversion of the Canadian Fairchild F-11 Husky bush aircraft.
http://www.secretprojects.co.uk/forum/index.php/topic,1070.msg24965.html#msg24965

Offline LowObservable

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Re: Turboprop conversions – built and unbuilt
« Reply #149 on: October 05, 2014, 04:05:17 am »
I saw the mention of the O-2ST above...

http://www.flightglobal.com/pdfarchive/view/1983/1983%20-%200383.html?search=337

I would not bet any part of my anatomy on the completeness or accuracy of that article, however, as it produced a letter from the company involved:

http://www.flightglobal.com/pdfarchive/view/1983/1983%20-%200722.html?search=brico


Jack Bridges (Brico) definitely had some Saudi and national security connections, but died at 60 the following year.

http://newspaperarchive.com/us/maryland/annapolis/annapolis-capital/1984/03-10/page-4

It was also known as the Desert Utility Aircraft or Sandcrab. Walt Shiel's Cessna Warbirds book probably has something on it. but my copy has gone walkies.

The remains of the aircraft are at the Quonset Air Museum on R.I.

http://secure.wickfordwebworks.com/~theqamo/aircraft-cessna-02a.html
« Last Edit: October 05, 2014, 06:38:21 am by LowObservable »