To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

Pratt & Whitney JT12

From Wikipedia, the free encyclopedia

JT12
A JT12A turbojet
Type Turbojet
National origin United States
Manufacturer Pratt & Whitney
First run 1957
Major applications North American Sabreliner
Number built 800+[1]
Variants Pratt & Whitney T73

The Pratt & Whitney JT12, (US military designation J60) is a small turbojet engine. The Pratt & Whitney T73 (Pratt & Whitney JFTD12) is a related turboshaft engine.[2]

YouTube Encyclopedic

  • 1/5
    Views:
    529
    479 723
    12 420
    5 891
    1 235
  • Running a JT-12 engine
  • Pratt & Whitney R4360 Power-Up, July 12, 2008
  • sabreliner engine start and run up
  • sabre engine start
  • Airborne Surveillance Drone Fairchild SD-5 Osprey AN/USD-5 from R & D Progress Report 3 1961 US Army

Transcription

Design and development

The J60 conception and project design began in July 1957 at United Aircraft of Canada (now Pratt & Whitney Canada) in Montreal. The project design details were transferred to the main P&W company in East Hartford and in May 1958, the first prototype, with military designation YJ60-P-1 commenced testing.

Flight tests were completed in early 1959; followed by the delivery of the new JT12A-5 engines in July 1959. These were for the two Canadair CL-41 prototype trainers with a rating of 12.9 kN (2,900 lb st). The modified JT12A-3 turbojets with a basic rating of 14.69 kN (3,300 lb st) were tested in the two Lockheed XV-4A Hummingbird VTOL research aircraft. The next version, JT12A-21, had an afterburner which delivered a maximum thrust of 17.91 kN (4,025 lb st).

Variants

Data from Janes[3]
YJ60-P-1
prototype
J60-P-3
J60-P-3A
J60-P-4
J60-P-5
J60-P-6
J60-P-9
T73
Military designation of the Pratt & Whitney JFTD12 free power turbine turboshaft version of the J60.
JT12A-3LH
JT12A-5
(J60-P-3 / -3A / -5 / -6 / -9) Take-off ratings from 2,900 lbf (12.9 kN) to 3,001 lbf (13.35 kN).
JT12A-6
Essentially similar to the -5
JT12A-6A
JT12A-7
(J60-P-4) up-rated to 3,300 lbf (15 kN)
JT12A-8
JT12A-8A
JT12A-21
An after-burning version developing 4,023 lbf (18 kN) thrust wet.
FT12
Turboshaft versions for marine use.
JFTD12
Company designation of the Pratt & Whitney T73 free power turbine turbo-shaft version of the J60.

Applications

Civilian (JT12)

Military (J60)

Specifications (JT12A-8A)

Data from Aircraft engines of the World 1966/67[4]

General characteristics

  • Type: Commercial turbojet
  • Length: 78 in (2,000 mm)
  • Diameter: 22 in (560 mm)
  • Dry weight: 468 lb (212 kg)

Components

  • Compressor: 9-stage axial compressor
  • Combustors: Cannular - 8 burner cans in an annular casing
  • Turbine: 2-stage axial turbine
  • Fuel type: ASTM-A-1 / MIL-J-5624 / JP-1 / JP-4 / JP-5
  • Oil system: Return pressure spray system at 45 psi (310 kPa)

Performance

See also

Related development

Comparable engines

Related lists

References

  1. ^ Connors, p.285
  2. ^ Greg Goebel's Vectorsite
  3. ^ Janes: JT12
  4. ^ Wilkinson, Paul H. (1966). Aircraft engines of the World 1966/67 (21st ed.). London: Sir Isaac Pitman & Sons Ltd. p. 103.

External links

This page was last edited on 4 January 2024, at 16:03
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.