Snecma M88

Last updated
M88
M88-2 Engine.JPG
M88-2 engine at Paris Air Show 2007
Type Turbofan
National originFrance
Manufacturer Safran Aircraft Engines
Major applications Dassault Rafale

The Snecma M88 is a French afterburning turbofan engine developed by Snecma (now known as Safran Aircraft Engines) for the Dassault Rafale fighter.

Contents

History

The program for the M88 arose from a need for a suitable propulsion system for air-superiority and ground-attack missions. In 1983, Dassault Aviation planned to produce a technology demonstrator for the Avion de Combat eXpérimental (ACX), which was expected to fly in 1986. Although the M88 was intended to be fitted to the definitive aircraft, [1] it was not expected to be ready in time, and the ACX was therefore initially powered by the General Electric F404.

Due to the broad application of the new engine (as the aircraft was to replace considerable number of French fleet), it was necessary for the engine to have a high thrust-to-weight ratio, low fuel consumption in all flight regimes, and a long engine life. [2] Additional considerations were afforded to good maintainability, and upgrade potential (73 kN to 105 kN using the same core). The program was officially launched in 1986. It was decided to flight test the engine, the M88-2, aboard the Dassault Breguet, and the Rafale A prototype. [3] [4] [5] :35 Indeed, after having replaced the aircraft's left F404, the engine was first flight tested aboard the Rafale A on 27 February 1990. By then, the fourteen M88-2s had accumulated 1,600 hours of running time. The demonstrator thereafter reached supersonic speed without afterburners, reached a height of 50,000 ft, endured load factors of −2g and +9g and flown at an angle of attack of 30°. As of July 2022, M88 engine that powers Dassault Aviation’s multirole fighter has clocked up more than one million operating hours [6]

Variants

In Production

M88-1
A four-year proof-of-concept program that preceded the M88-2. [5]
M88-2
A 73 kN (7,400 kgf; 16,000 lbf) thrust variant powering the Dassault Rafale. [5] :35

Proposed

M88-3
An 80–93 kN (8,200–9,500 kgf; 18,000–21,000 lbf) thrust variant for single-engine light combat aircraft. [5] :36 Proposed for an improved JAS-39 Gripen C military aircraft. [7] The M88-3 would have a new low pressure compressor (LPC) with a new variable stator vane stage and an increased mass flow of 73.4 kg/s (9,710 lb/min). [8]
M88-4
A 95–105 kN (9,700–10,700 kgf; 21,000–24,000 lbf) thrust variant for heavier single-engine fighter aircraft. [5] :36
M88 Pack CGP (for "total cost of ownership") or M88-4E
Based on a study contract, with development and production reported in 2008 by the General Delegation for Armament to introduce technical improvements and reduce maintenance costs. The purpose of this release is to reduce cost of ownership of the M88 and longer inspection intervals of the main modules by increasing the lifetime of the hot and rotating parts. It has been tested in flight for the first time March 22, 2010 at Istres, the Rafale's M02 CEV. [9]
M123
A proposed commercial derivative targeted for regional jets, initially with 73 kN (7,400 kgf; 16,000 lbf) thrust but eventually spanning a thrust range of 63–100 kN (6,400–10,200 kgf; 14,000–22,000 lbf). Studied with General Electric Aviation to possibly replace the jointly produced CFM56 engine, the M123 added a seventh high pressure compressor (HPC) stage to the M88's six-stage HPC unit. [10] Later known as the CFM88, the engine was a proposed powerplant for the Regioliner, the DASA/Aerospatiale/Alenia successor to the MPC 75. [11]
M138
A turboprop variant with a core based on the M88-2 engine, intended to power the Airbus A400M transport aircraft. [12]

Applications

Specifications (M88-2)

Data from Safran Aircraft Engines [13]

General characteristics

Components

Performance

See also

Comparable engines

Related lists

Related Research Articles

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References

  1. "Snecma develops M88". Flight International. Vol. 124, no. 3888. Surrey, UK: IPC Transport Press. 6–12 November 1983. p. 1,294. ISSN   0015-3710. Archived from the original on 18 October 2014.
  2. Williams 2002, pp. 92, 96.
  3. Williams 2002, p. 96.
  4. Moxon, Julian (16–22 March 1986). "Snecma advances M88 demonstrator". Flight International. Vol. 129, no. 4003. Surrey, UK: IPC Transport Press. p. 26. ISSN   0015-3710. Archived from the original on 18 October 2014. Retrieved 14 May 2017.
  5. 1 2 3 4 5 Norris, Guy; Sedbon, Gilbert (10–16 April 1991). "Power to progress". Flight International . Vol. 139, no. 4262. London, UK: Reed Business Information. pp. 32–36. ISSN   0015-3710. Archived from the original on 13 January 2010.
  6. "Rafale's Safran M88 engine passes milestone of one million operating hours". 13 July 2022.
  7. Elliott, Simon (21 September 1994). "Nerve centre: Sweden prepares to open its tactical training and conversion center for the JAS39 Gripen". Flight International . Vol. 146, no. 4439. pp. 40+. ISSN   0015-3710. Gale   A16135865.
  8. "Snecma M88". Flight International . 9 June 1999. p. 90. ISSN   0015-3710 . Retrieved 10 July 2020.
  9. "Rafale Fighter Flies with Upgraded M88-4E Engine." Archived 2013-10-12 at the Wayback Machine Defense Talk, 7 May 2010.
  10. Norris, Guy (20 March 1991). "Snecma M123 is military-based". Flight International . Vol. 139, no. 4259. p. 20. ISSN   0015-3710. Gale   A10502171.
  11. Thomalla, Volker K. (February 1992). Regioplane consortium to develop 80-130-seat passenger liner. Science & Technology: Europe (Report). JPRS Report. Translated by Foreign Broadcast Information Service (published 27 March 1992). Flug Revue. pp. 5–7.
  12. Moxon, Julian (14 July 1999). "New identity: Airbus is awaiting a decision on its bid to build Europe's Future Large Aircraft" . Flight International . Paris, France. pp. 34+. ISSN   0015-3710.
  13. "Snecma M88 Technical characteristics".

Bibliography