Obscure US Gas Turbine Projects

D

Deleted member 2278

Guest
Could anyone please help me identify some of the engines being compared in the paper linked below?

Comparative Study of Turbofan and Turbojet Engines - NASA Technical Reports Server (NTRS)

ntrs.nasa.gov ntrs.nasa.gov

On Page 8, a Wright TJ37 (Orpheus) & GE 279 (J93 I believe) are being compared with an Allison 640 (according to Mr Chong, the XJ89) and some mystery items. The Wright WTF10/12 & Allison 700-PD5 turbofans and the Allison 670 turbojet are new to me. A cursory search didn't throw up anything obvious. Does anyone have a Scooby?

ETA: Edited thread title to better reflect contents.
 
Last edited by a moderator:
Upon further reading, the Allison 640 and J89 would appear to be separate entities.

Aviation Week & Space Technology 1957-10-07 Page 72, under the section "Use of Plant 8" has the Allison 640 as a single-spool loser for propelling the WS-110A.

archive.org

Aviation Week & Space Technology 1957-10-07: Vol 67 Iss 14 : Free Download, Borrow, and Streaming : Internet Archive

Aviation Week & Space Technology 1957-10-07: Volume 67, Issue 14.Digitized from IA1514330-06.Previous issue:...
archive.org

Aviation Week & Space Technology 1957-09-16 Page 23, under Industry Observer, has the J89 as a 12-to-1 pressure ratio twin-spool engine that bypasses flow around the high-pressure compressor above Mach 2.

archive.org

Aviation Week & Space Technology 1957-09-16: Vol 67 Iss 11 : Free Download, Borrow, and Streaming : Internet Archive

Aviation Week & Space Technology 1957-09-16: Volume 67, Issue 11.Digitized from IA1514330-06.Previous issue:...
archive.org

An image of the J89's turbine casing can be found of Page 71 of the first link.
 
On the Curtiss-Wright WTF-10..... https://www.biblio.com/book/preliminary-data-wtf-10-turbofan-wright/d/56255934

Not affordable for moi so I'll have to content myself with little snippets gleaned elsewhere! The link below indicates that the WTF-10's development was started circa 1956, which is interesting because....

books.google.co.uk

Hearings

books.google.co.uk

.....the two patents listed below involve Curtiss-Wright turbofans circa 1956. Circumstantial, yes but perhaps not unrelated?


Another Curtiss-Wright mystery engine, the dual-cycle SE-109, powering the CL-445, shown here http://www.codeonemagazine.com/article.html?item_id=114 might very well be similar to the patent below.


Apropos of nothing a GM (Allison?) duct-burning engine patent that was interesting. Clearly nothing to do with the J89 but worthy of note!

 
Although already linked on this site some time ago, here: https://www.secretprojects.co.uk/th...ay-fighter-studies-1953-1957.11600/#post-2254

...the document contains some interesting engine-related goodies that are worth flagging up themselves!

Allison turbofan J71 development:

archive.org

DTIC ADA175379: V/STOL Concepts and Developed Aircraft. Volume 1. A Historical Report (1940-1986) : Defense Technical Information Center : Free Download, Borrow, and Streaming : Internet Archive

The purpose of this document is to present a comprehensive, in-depth review of the serious efforts made in the development of VTOL and V/STOL concepts and...
archive.org

Some "rubberized" GE X-84 turbofan data (according to Andreas Parsch, the X-84 is the TF31):

archive.org

DTIC ADA175379: V/STOL Concepts and Developed Aircraft. Volume 1. A Historical Report (1940-1986) : Defense Technical Information Center : Free Download, Borrow, and Streaming : Internet Archive

The purpose of this document is to present a comprehensive, in-depth review of the serious efforts made in the development of VTOL and V/STOL concepts and...
archive.org
 

Attachments

  • Flight, 29 April 1960, page 594.jpg
    Flight, 29 April 1960, page 594.jpg
    339.4 KB · Views: 58
  • Flight, 29 April 1960, page 595 part 1.jpg
    Flight, 29 April 1960, page 595 part 1.jpg
    307.7 KB · Views: 59
  • Flight, 29 April 1960, page 595 part 2.jpg
    Flight, 29 April 1960, page 595 part 2.jpg
    377.8 KB · Views: 59
Last edited:
Does anyone have any information on the Curtiss-Wright DC-36 engine?

This seems to be a good thread to ask this question.
 
Would the Curtiss-Wright DC36 be the dual cycle engine which was proposed for use on a version of the Boeing Model 804, a design which lost to the North American NA-278, which became the XB-70 Valkyrie?
 
yes, but I don't think the engine was originally a dual cycle engine. I say that because there was a proposed dual cycle 279x (which would became the J93) and j58, for the 804 as well. I also don't know if it was a pure turbojet, or a turbofan.
 

Similar threads

Back
Top Bottom