Guest

CFM56 Engine

Sat Jan 27, 2001 2:46 am

Earlier today I was in CFM's website checking out the data on the various versions of the CFM56 and I am quite impressed. I know I have been bashing GE engines a lot, but this one is an exception. I like the CFM56-7 version that is on the new 737NGs. It has stronger components like the titanium fan blades which make me wonder why there is not a version of the CFM56-7 with more thrust over 35,000lbs that can be used on the Airbus A340-300E model instead of the CFM56-5?
 
exPratt
Posts: 306
Joined: Wed Mar 08, 2000 6:15 am

RE: CFM56 Engine

Sat Jan 27, 2001 3:02 am

The CFM56 engine has already gone through several thrust increases, so there may not much left for additional thrust increases without encroaching on the necessary N1, N2, and EGT margins. The primary limiting factors if the existing design was retained would be fan speed, core air flow, and turbine inlet temperature. But if the fan, core, and/or turbines have to be changed, then it is a new certification program that is expensive and time consuming. Even if the engine does have additional thrust increase potential, GE may not want to invest in the development costs for a limited market.

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos