The list price of a LEAP-1A is USD14.5 million, and USD14.5 million for a LEAP-1B.  CFM International offers its support for the engine, and signed a 15-year Rate per Flight Hour agreement with Loong Air for 20 LEAP-1A at U.S $333 million, or $3039 per engine per day, in contrast with U.S. $138 million for 17 CFM International CFM56 over 12 ...
Feb 27, 2020 · The assumption of an annual production of around 1,400 LEAP based on an average production of 10 LEAP-1B engines per week over the year; And the agreement between CFM International and Boeing for the payments of its engines.
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At a probable annual rate of 1,400 engines by the early 2020s, LEAP-1Bs will represent about two-thirds of all LEAP production. At present, GE Aviation is delivering all LEAP- 1Bs, with Safran Aircraft Engines delivering all LEAP-1As and most LEAP-1Cs.
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The LEAP's basic architecture includes a scaled-down version of Safran's low pressure turbine used on the GEnx engine. The fan has flexible blades manufactured by a resin transfer molding process, which are designed to untwist as the fan's rotational speed increases. While the LEAP is designed to operate at a higher pressure than the CFM56 (which is partly why it is more efficient), GE plans to set the operating pressure lower than the maximum to maximize the engine's service life and reliability. Currently proposed for the LEAP is a greater use of composite materials, a bliskfan in the compressor, a second-generation Twin Annular Pre-mixing Swirler (TAPS II) combustor, and a bypass ratio around 10-11:1. GE is using ceramic matrix composites (CMC) to build the turbine shrouds. These technological advances are projected to produce 16% lower fuel consumption. Reliability is also supported by use of an eductor-based oil cooling system similar to that of the GEnx, featuring coolers moun...
The LEAP ("Leading Edge Aviation Propulsion") incorporates technologies that CFM developed as part of the LEAP56 technology acquisition program, which CFM launched in 2005. The engine was officially launched as LEAP-X on 13 July 2008. It is intended to be a successor to the CFM56-5Band CFM56-7B. In 2009, COMAC selected the LEAP engine for the C919. The aircraft was due to begin testing in 2016. In total, 28 test engines will be used by CFM to achieve engine certification, and 32 others will be used by Airbus, Boeing and COMAC for aircraft certification and test programs.The first engine entering the test program reached and sustained 33000lbf of thrust, required to satisfy the highest rating for the Airbus A321neo. The same engine ultimately reached 35000lbf of thrust in test runs. General Electric carried out the first test flight, of a LEAP-1C, in Victorville, California, with the engine mounted on the company's Boeing 747 flying testbed aircraft, on October 6, 2014. The -1C versi...Web site: Aircraft engines . Safran.News: Pratt Targets Hot, Rotating Blade Use Of CMCs . Apr 13, 2015 . Guy Norris . subscription. Aviation Week & Space Technology . Hot blades . April 27, 2015 . 55 .News: New engines: flurry of activity despite downturn . 2009-10-06 . Flightglobal.News: Smooth Start To Fast-Paced Leap-1A Test Program . Oct 28, 2013 . Guy Norris . Aviation Week & Space Technology . Pressure testing . 43 . subscription .
- 1 fan, 3-stage LP, 10-stage HP
- 2-stage HP, 7-stage (-1B: 5-stage) LP 
- Twin-spool, high bypass turbofan
May 23, 2021 · ~1,400 LEAP-powered aircraft have been delivered globally to date LEAP engines provide 15% lower fuel consumption, CO2 emissions Dubai, UAE: CFM International’s LEAP engine continues to set the industry standards as the fleet achieves one of the most rapid accumulation of hours and cycles in commercial aviation history.
Since the first LEAP-powered flight entered commercial service in August 2016, the engine program has grown exponentially with nearly 1,400 LEAP-powered aircraft have been delivered to some 136 operators on five continents by the end of this year’s first quarter, CFM informed.