Boeing rendering illustrates major changes to 737NE

Boeing’s unveiling of the 737-7, -8 and -9 New Engine Family confirms many of the changes the airframer must make to the narrowbody to support the integration of the CFM International LEAP-1B engine, including significant changes to the aircraft’s fuselage.

The company’s released renderings illustrate the larger engine nacelle, which now includes noise-reducing chevrons that are hallmark’s of the airframer’s 787 and 747-8 programmes.

Unclear from the rendering is the exact size of the LEAP-1B engine, believed to be 66in, avoiding any major nose landing gear changes to maintain a 17in ground clearance beneath the nacelles.

Further, Boeing has made major changes to the 737′s aft fuselage, with a 787-style tail cone and light emitting diode (LED) auxiliary power unit (APU) tail lights.

Perhaps even more significantly, the rendering illustrates the elimination of an aft body join once present on the 737-700. The join on the -700 comes just forward of the last two passenger windows ahead of door two. On Boeing’s 737-7 rendering, no such join is present, potentially a significant weight-saving move.

737NE-JointElim.jpg737-700-aftjoin.jpgThe 737NE’s wing’s trailing edge has also been refined with reshaped flap fairings, likely for drag reduction on the strengthened wing.

Leading the engineering effort to update the 737 will be Michael Teal, who most recently served as chief engineer for the General Electric GEnx-2B-powered 747-8 program, which began its development as a re-engined and stretched 747-400.

In addition to the July commitment from American Airlines for 100 of the updated 737, Boeing says that four additional airlines have committed to 396 aircraft, the first of which is expected to enter service in 2017.

11 Responses to Boeing rendering illustrates major changes to 737NE

  1. Skies and Seas HD August 30, 2011 at 12:43 pm #

    It looks like the Boeing 737NE is going to look a lot neater when built.

    The chevrons on the engines look great, but I don’t see or hear a difference in the engine noise when compared with an A380. The 787 and A380 sound very similar despite the chevrons.

    Just a shame we have to wait until 2017 to see these being delivered.

  2. Skies and Seas HD August 30, 2011 at 12:55 pm #

    How come the 737-700 has this extra join in the first place? Do the -800 and -900/ER have them too?

  3. TC August 30, 2011 at 1:40 pm #

    Boeing will be offering models in lengths of roughly 110′, 130′, and 140′. Upping the model 7 to 120′ would give the revenue potential of more seats and/or more premium economy. Hundreds of planes flying for twenty years should provide a good return on investment.

  4. S August 30, 2011 at 2:18 pm #

    I think it’s going to be the 737 MAX, not 737NE

    http://www.newairplane.com/737/737Max/#/video

  5. John S August 30, 2011 at 4:40 pm #

    Jon,

    Be careful not to read too much engineering into a Boeing rendering. Remember the winglets on the 67 NewGen tanker rederings?

    So far, no winglets on the KC-46A.

  6. lee August 31, 2011 at 9:54 am #

    Hey Boeing, as a frequent traveler on the worlds largest operator of B737′s, how about a wider passenger cabin and thus seats for our large American tushes?

  7. Aero Ninja August 31, 2011 at 11:35 am #

    How much can you trust a rendering when the larger engine they are using for MAX has a circular nacelle, whereas the NG that MAX is replacing has a flattened nacelle, while having a smaller diameter engine?!

  8. AirShowFan August 31, 2011 at 1:37 pm #

    Hey lee; Airlines are always looking for ways to cram more people into an airplane. People complain, but they still buy the cheaper tickets!

    Most 747 economy classes nowadays have one more seat per row than did the original 747s. Some 767s have also gone from 7 seats per row to 8. And I’m pretty sure some 777s will soon go from 9 to 10. (They already may have; I don’t pay that much attention to the specifics). The 787′s diameter is between the 767′s and the 777′s, if I’m not mistaken. This is marketer to the general public as “more width per seat than the 767″, but many (most?) operators want 9 seats per row instead of 8, which basically means “You can squeeze a 777′s worth of people into a smaller airplane”. Again, even though people complain, they don’t put their money where their mouth is.

  9. Bob August 31, 2011 at 2:39 pm #

    Somehow LED’s on the aft fuselage do not sound as major changes, this feature is worth mentioning because… ?

  10. Bruce September 5, 2011 at 8:21 am #

    Hi Bob

    LED = Leading Edge Devices or Light Emitting Diodes?

  11. Bob September 13, 2011 at 4:06 am #

    In this post light emitting diodes, it sounds like a feature my car dealer tried to use to sell me a car..