LEAP engine continues to deliver (english only)

  • Major tests successfully completed
  • Four flight test programs launched in seven months


1er vol FTB (Flying Test Bed) du LEAP-1C sur Boeing 747 de GE Aviation

LE BOURGET - 15 June 2015 - The pace of the LEAP engine development is accelerating as CFM International continues to successfully check off major development milestones as the program moves toward entry into service in 2016. 

The engine program is proceeding on schedule; with more than 30 engines currently on test or in final assembly.  Through 12 June 2015, these engines had accumulated more than 5,000 test hours and 6,100 cycles, including ground and flight tests.

On April 29, CFM initiated flight testing of the LEAP-1B engine on a modified 747 flying testbed at GE Aviation Flight Test Operations in Victorville, California.  The engine behaved well and completed multiple aeromechnical test points at various altitudes during the five-hour, 30-minute first flight.  The LEAP-1B was the third flight test program CFM had launched in seven months.  Overall, the company has completed more than 50 flights and 425+ hours on the two 747s testbeds.   

That milestone was followed a few weeks later, on May 19 in Toulouse, by the first flight of the LEAP-1A engine powering the Airbus A320neo.  Again, the engine performed extremely well, completing a four-hour, 25-minute mission during which the engine was tested throughout the entire flight envelope.

Both tests were conducted on schedule, reinforcing the success of the LEAP development program and the confidence shown in the performance and durability of the new product.  The engines are successfully continuing the flight test missions, which represent the next major milestones in a program that will culminate in engine certification and entry into service on the A320neo in 2016 and the 737 MAX in 2017.

In the last several months, CFM has been completing major ground test points.  The company initiated three different flight-test campaigns on GE's flying testbeds over the course of seven months.


Most recently, the LEAP engine successfully executed the fan blade-out test; bird ingestion tests, including medium, large, and flocking bird; ice slab ingestion; hail stone and hail storm ingestion; cross wind; icing; acoustics; and emissions testing. 

These engines are part of the most extensive ground and flight test certification program in CFM's history.  Overall, the test plan will eventually encompass 60 engine builds over a three-year span and will accumulate approximately 40,000 cycles prior entry into service.

About CFM International

LEAP engines are a product of CFM International, a 50/50 joint company between Snecma (Safran) and GE, and the world's leading supplier of commercial aircraft engines.  To date, the company has received orders and commitments for more than 8,900 LEAP engines from 85 operators around the globe. For more information, visit us at www.cfmaeroengines.com or follow us on Twitter @CFM_engines.

À propos de CFM International

Les moteurs CFM56 et LEAP sont des produits de CFM International, société commune 50/50 entre Snecma (Safran) et GE. CFM International est le premier fournisseur mondial de moteurs destinés à l'aviation civile, avec plus de 27 200 moteurs livrés au 31 décembre 2014 à plus de 530 opérateurs du monde entier. CFM a officiellement lancé en 2008 le programme LEAP, son premier moteur entièrement nouveau après la création du CFM56 il y a près de 40 ans.

Le moteur LEAP a été conçu pour apporter des améliorations à deux chiffres en termes de consommation de carburant, d'émissions d'oxydes d'azote et de nuisances sonores, tout en maintenant la fiabilité et les faibles coûts de possession légendaires de son prédécesseur, la famille de moteurs CFM56, présente dans le monde entier. Le LEAP-1A motorise la famille  A320neo d'Airbus, le  LEAP-1C est l'unique motorisation occidentale du  C919 de COMAC et le  LEAP-1B équipe en exclusivité les nouveaux Boeing 737 MAX. Pour plus d'informations, consultez www.cfmaeroengines.com ou suivez-nous sur Twitter @CFM_engines.