737 NG & IAE V2500

[F-BGCI]

Could anyone shed some light on the reasons why Boeing doesn't offer the 737 NG with IAE V2500 ?

Thanks in advance for your replies.

[Zeke]

Good question..

Boeing have access to the degin data, they are installed on the MD90.

Maybe something to do with ground clearance, the V2500 has a larger fan diameter by 30 mm, and it is 705 mm longer.

The CFM 56-7B20 as installed on the 737 600/700 is slightly heavier than the V2500 series engines on the A320/A321 (24/4 kg) but lighter than the A319 engine by 18 kg.

The cockpit controls and engine instruments are slightly different between the two.

Z

[[email protected]]

As I recall from some rag I read...

The issue is purely contractual. When negotiating for risk-sharing development partners for the 737NG, Boeing agreed to make the CFM the exclusive engine for the (sub)type, and CFM agreed to shoulder a higher-than-normal share of the cost.

This sort of arrangement is quite common, and sometimes _very_ profitable, othertimes less so (e.g. the RR powerplant on the MD-90 <img src="rolleyes.gif" border="0"> )

Similarly, aren't various Airbus widebodies RR exclusively?

Malc.

[Flip Flop Flyer]

Malc,

Yes, the A340-500/600 is RR Trent 500 exclusive. The A340-200/300 is CFM56 exclusive. The A330 is offered with powerplants from both GE, PW and RR.

I have heard rumours that the consortia behind the V2500 very looking at new applications. Basically it is only viable for the A320 series since the MD90 is no longer in production. Belive they looked at the A340-200/300 but not the 737 because of the exclusivity deal CFM has with Boeing. . .Similarly, GE has a exclusive deal with Boeing on the 777-200LR and 777-300ER with the GE90-115B. And that has proven to be quite a show stopper for airlines like Cathay who are running with the RR Trent on both B777 and A330. The design and production of the 777-200LR and -300ER is currently on hold due to lack of demand.