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Author Topic: Turboprop conversions – built and unbuilt  (Read 86526 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