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Type Single Spool Turbojet
National origin France
Manufacturer Microturbo
First run June 1999 (rated)[1]
Major applications Kongsberg Naval Strike Missile
Unit cost $100,000 (est.)[2]
Developed from Microturbo TRI 60

The Microturbo TRI-40 is a small turbojet engine developed for use in cruise missiles and small unmanned aerial vehicles in the 2.2 - 3.6 kN (500 - 800 lbf) thrust class.

Development and Design[edit]

The TRI-40 engine is a modified version of the Microturbo TRI 60 class of small turbojets, designed to be smaller and lighter for new missiles. It is currently being used on the Kongsberg Naval Strike Missile (NSM) for the Royal Norwegian Navy and the updated MM-40 Exocet Block 3 anti-ship missile.[2]

There are several differences between the TRI-40 and the older TRI-60 engines. One is that the -40 uses a 4 stage compressor rather than the 3 stage compressor that the original TRI-60 models use (although several newer variants of the TRI-60 use a 4 stage compressor as well).[2] Another major difference is that the bearing system is lubricated by fuel rather than a separate oil system. Finally, the engine is much more "electric" than the TRI-60. It has a permanent magnet based generator (270 V DC) mounted directly on the engine shaft, which older engines lacked, as well as an ECU controlled fuel metering system.[1]

Specifications (TRI-40)[edit]

Data from [2][3]

General characteristics

  • Type: Single Spool Turbojet
  • Length: 680 mm (26.77 in)
  • Diameter: 280 mm (11.02 in)
  • Dry weight: 44 kg (97 lb)



See also[edit]

Comparable engines
Related lists


  1. ^ a b RIDEAU, Jean-François , GUYADER, Gilles, CLOAREC, Alain (2008). MICROTURBO Families of Turbojet Engine for Missiles and UAV’s From the TR60 to the new bypass turbojet engine generation. 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. 21–23 July 2008, Hartford, CT. AIAA 2008-4590.
  2. ^ a b c d Microturbo TRI 40/TRI 60 (2008). The Market for Missile/Drone/UAV Gas Turbine Engines. Forecast International. Accessed 20 Oct 2009.
  3. ^ TRI-40. Microturbo Website. Accessed 20 Oct 2009.

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Microturbo_TRI_40 — Please support Wikipedia.
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3 news items

Daily Mail

Daily Mail
Thu, 06 Jun 2013 05:13:12 -0700

The Naval Strike Missile is a sophisticated anti-ship and land-attack weapon developed especially by Norwegian defence and aerospace firm Kongsberg. The 880lb missile is propelled towards its target at subsonic speed by a Microturbo TRI-40 turbojet.

Báo Đất Việt

Báo Đất Việt
Mon, 29 Dec 2014 23:46:07 -0800

(Ảnh Nóng) - Sau khi mua tên lửa hành trình AGM-158, nâng cấp F-16 và mua pháo tự hành K-9, Ba Lan tiếp tục chi 173,5 triệu USD mua tên lửa chống hạm NSM. Theo Jane's Defence Weekly ngày 28/12 đưa tin, Bộ quốc phòng Ba Lan và công ty quốc ...
Sun, 10 Apr 2011 19:33:15 -0700

其主要创新是用Microturbo TRI-40涡轮喷气发动机替代了原有的火箭喷射引擎,它解决了Block2所面临相对范围比较短的问题。Block3飞行超过100海里,并且得益于新功能,比如先进的电子系统和螺旋式攻击性。Block2空射导 ...

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