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Converting Props To Jets And Vice-versa  
User currently offlineDIJKKIJK From French Southern Territories, joined Jul 2003, 1564 posts, RR: 6
Posted (3 years 2 months 19 hours ago) and read 1502 times:

Is this possible or has it been tried?

Can a propeller driven airplane be converted into a jet powered one, or is it possible the other way around?

What would the technical difficulties be ?


Horizontal, this was Lady Chatterley's position in society - Spike Milligan
20 replies: All unread, jump to last
 
User currently offlineArch89U From United States, joined May 2001, 188 posts, RR: 0
Reply 1, posted (3 years 2 months 19 hours ago) and read 1498 times:

The Dornier 328 Jet comes to mind...but I'm sure someone else will provide more details.

http://en.wikipedia.org/wiki/Dornier_328

User currently offlineAviopic From Netherlands, joined Mar 2004, 2372 posts, RR: 53
Reply 2, posted (3 years 2 months 18 hours ago) and read 1472 times:

If you mean Turbine the answer is yes.
Several Dakota's(DC3) have been converted to Turbo prop.

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I am not aware of any conversion the other way around but technically I don't see a problem.

User currently offlineN231YE From , joined Dec 1969, posts, RR:
Reply 3, posted (3 years 2 months 16 hours ago) and read 1442 times:

Also the Convair CV-580 and CV-600, which are turboprop conversions of of the piston powered CV-240/340/440.

Note that this is the same airplane:

Back in 1967 as a CV-440, with its Pratt & Whitney R-2800 radials:

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Nine years later, its a CV-580 because it was converted, now powered by Allison (501D?) Turboprops.

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Also, I remember Boeing once took a DeHavilland DHC-5 and replaced its piston-props with turbofan engines, mainly to study "blown-flaps" and STOL.

[Edited 2006-10-05 22:39:54]

User currently offlineTepidHalibut From Iceland, joined Dec 2004, 169 posts, RR: 7
Reply 4, posted (3 years 2 months 15 hours ago) and read 1433 times:

Quoting DIJKKIJK (Thread starter):
Can a propeller driven airplane be converted into a jet powered one, or is it possible the other way around

Or another example :

Jet


to turbo-prop
http://tanks45.tripod.com/Jets45/Histories/Trent/Trent_1.jpg

User currently offlineWrenchBender From Afghanistan, joined Feb 2004, 1568 posts, RR: 10
Reply 5, posted (3 years 2 months 15 hours ago) and read 1427 times:
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DHC 5 Buffalo, a turbo prop
http://www.dhc4and5.org/B3328.jpg
To NASA demonstrator, COANDA
http://www.dhc4and5.org/AC80-0613-3_a.jpeg
The QSRA was a DHC-5 Buffalo, modified by Boeing by the installation of a new wing. QSRA was used for researching upper surface blowing, which allowed the aircraft to fly at very high lift coefficients.
and

The C-8A Buffalo Augmentor Wing Jet-STOL research aircraft is a modified version of a high-wing, high-tail, turboprop Buffalo military transport manufactured by DeHavilland, Ltd., of Canada, and designated NASA 716. It is used to study the design and operational characteristics of jet-STOL aircraft using split-flow turbofan engines to provide both propulsive and augmentor wing jet flows for increased powered-lift. (NASA)

WrenchBender


Silly Pilot, Tricks are for kids.......
User currently offline2H4 From United States, joined Oct 2004, 8139 posts, RR: 65
Reply 6, posted (3 years 2 months 13 hours ago) and read 1401 times:
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Quoting Aviopic (Reply 2):

I am not aware of any conversion the other way around but technically I don't see a problem.

If you mean converting turboprops to recips, Orenda used to offer a conversion to install large, liquid-cooled V-8s in King Airs.

If you mean converting turboprops to straight jets, Beechcraft tried such a thing. In 1980, they fitted JT15D turbofans to a King Air 200, but later decided to purchase Mitsubishi's design to use as their entry into the corporate jet market:



For more airborne mutants, check out http://www.airliners.net/discussions/tech_ops/read.main/157215/



2H4





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User currently offlineStarlionblue From Greenland, joined Feb 2004, 13594 posts, RR: 68
Reply 7, posted (3 years 2 months 12 hours ago) and read 1366 times:

The SAAB J21: http://en.wikipedia.org/wiki/Saab_21 was developed into the SAAB J21R: http://en.wikipedia.org/wiki/Saab_21R.

J21:


J21R:



Tact Is For People Who Aren't Witty Enough To Be Sarcastic
User currently offlineJetMech From Australia, joined Mar 2006, 2187 posts, RR: 53
Reply 8, posted (3 years 2 months 8 hours ago) and read 1336 times:

Was the Turbo Commander the basis for the Jet Commander (IAI Westwind)?


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User currently onlineStealthZ From Australia, joined Feb 2005, 4140 posts, RR: 53
Reply 9, posted (3 years 2 months 2 hours ago) and read 1295 times:
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And this Percival Provost..

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Became Jet Provost..

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A later armed development was called the Strikemaster, sadly an example of which crashed here in Australia yesterday killing the pilot and passenger.

Regards


Of course old planes are safe, how do you think they got to be old?
User currently offlineEssentialPowr From United States, joined Sep 2000, 1820 posts, RR: 3
Reply 10, posted (3 years 1 month 3 weeks 8 hours ago) and read 1052 times:

Quoting JetMech (Reply 8):
Was the Turbo Commander the basis for the Jet Commander (IAI Westwind)?

Absolutely. It then became the Westwind II, then was bought by IAI and became the Astra, and is now owned by Gulfstream, and called the G150 after some significant mods...

More rare to find a jet to prop conversion...

[Edited 2006-10-15 06:34:53]

User currently offlineJetMech From Australia, joined Mar 2006, 2187 posts, RR: 53
Reply 11, posted (3 years 1 month 3 weeks 7 hours ago) and read 1033 times:

Quoting EssentialPowr (Reply 10):
Gulfstream, and called the G150 after some significant mods...

G'day EssentialPowr  Smile. Does this mean that the Gulfstream G150 is in essence a heavily modified Turbo Commander?. It is very interesting to see how certain aircraft morph from previous designs! Is the G550 based on the G100 / G150?

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The universe revolves around engineers as we choose the co-ordinate system!
User currently offline2H4 From United States, joined Oct 2004, 8139 posts, RR: 65
Reply 12, posted (3 years 1 month 2 weeks 6 days 23 hours ago) and read 1008 times:
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Quoting JetMech (Reply 11):
Is the G550 based on the G100 / G150?

Nope....the lineage of the G550 started with the Grumman G-159 Gulfstream I:


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2H4





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User currently offlineEssentialPowr From United States, joined Sep 2000, 1820 posts, RR: 3
Reply 13, posted (3 years 1 month 2 weeks 6 days 18 hours ago) and read 974 times:

Quoting JetMech (Reply 11):
Does this mean that the Gulfstream G150 is in essence a heavily modified Turbo Commander?.

No, as mentioned. The G100 I think is already out of production, replaced by the G150 which has a wider fuselage. The G200 is the former IAI Galaxy, which is shown in the bottom pic you provided. The current lineage of true Gulfstreams starts with the G350.

User currently offlineEMBQA From United States, joined Oct 2003, 8424 posts, RR: 19
Reply 14, posted (3 years 1 month 2 weeks 6 days 17 hours ago) and read 962 times:

Quoting DIJKKIJK (Thread starter):
Is this possible or has it been tried?


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"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineDl757md From United States, joined May 2004, 1522 posts, RR: 24
Reply 15, posted (3 years 1 month 2 weeks 6 days 17 hours ago) and read 964 times:

The worlds smallest twin recip....


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.....is now the worlds smallest twin-jet!   





DL757Md

[Edited 2006-10-15 21:29:30]


757 Most beautiful airliner in the sky!
User currently offline2H4 From United States, joined Oct 2004, 8139 posts, RR: 65
Reply 16, posted (3 years 1 month 2 weeks 6 days 17 hours ago) and read 954 times:
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DATABASE EDITOR




Quoting Dl757md (Reply 15):
.....is now the worlds smallest twin-jet!

And also the cheapest way to log multi turbine PIC time...  Wink



2H4





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User currently offlineDl757md From United States, joined May 2004, 1522 posts, RR: 24
Reply 17, posted (3 years 1 month 2 weeks 6 days 16 hours ago) and read 944 times:

Quoting 2H4 (Reply 16):
And also the cheapest way to log multi turbine PIC time...

 yes   Wink

I wonder if it could be ETOPS certified?!  Silly

DL757Md


757 Most beautiful airliner in the sky!
User currently offline2H4 From United States, joined Oct 2004, 8139 posts, RR: 65
Reply 18, posted (3 years 1 month 2 weeks 6 days 16 hours ago) and read 928 times:
AIRLINERS.NET CREW
DATABASE EDITOR




Quoting Dl757md (Reply 17):
I wonder if it could be ETOPS certified?!

So long as the "ET" stands for "Extra Tiny", sure.  biggrin 



2H4





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User currently offlineN231YE From , joined Dec 1969, posts, RR:
Reply 19, posted (3 years 1 month 2 weeks 6 days 16 hours ago) and read 925 times:

Quoting Dl757md (Reply 15):
.....is now the worlds smallest twin-jet!

Were those turbines intended for a R/C model airplane? They look very similar to R/C airplane turbines.

User currently offlineDl757md From United States, joined May 2004, 1522 posts, RR: 24
Reply 20, posted (3 years 1 month 2 weeks 6 days 16 hours ago) and read 917 times:

Quoting N231YE (Reply 19):
Were those turbines intended for a R/C model airplane? They look very similar to R/C airplane turbines

They are in fact used on RC aircraft amongst other uses. Click the link in reply 15. It goes to the engine manufacturer's site. There's a whopping 35Kg of thrust between the two engines. Plenty for a 170Kg airplane though.

DL757Md


757 Most beautiful airliner in the sky!
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