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Featured Replies

Hello friends in Flight Sim,I'm wondering why all the sim developers would let the main landing gear exposed after retract? It happened with all other boeing 737 from feelthere or ifly 737NGX. And now the great PMDG is doing the same thing to the soon to be released 737NGX. When I look @ its belly. I can clearly see the main landing gear exposes. I mean it would take off the realism out of flying the bird knowing the real boeing 737 has the main lang gear cover after retracted. Why?

That is how the 737 is designed. It would not be good for realism if there are gear doors on the model.

Kenny Lee
"Keep climbing"
pmdg_trijet.jpg

The Boeing 737 is the only Boeing narrowbody to feature exposed landing gear. Many aircraft do this, for simplicity and lower costs. All Boeing 737s ever made have come off the factory without gear doors. Even military variants have doorless main gear. The Boeing 707, 727 and 757 (the other Boeing deisgned narrowbodies) have gear doors, as they are bigger aircraft.

Inactive

  • Author

Ok! Thank you. I thought they had the landing door done to the plane after...But they (Boeing) decided to stay with that design. Once again, thank you to all.:Peace:Please Admns: Please delete my stupid question. Thank you!

The picture that Lukas posted was from a Classic, so here goes one from an actual 737NG (737-800):Jet_Airways_Boeing_737-800_VT-JNL_take-off.jpgIIRC, Boeing decided to leave the 737 without a door to cover the main gears in an attempt to reduce the weight of the aircraft.

Matheus Mafra

Wonder why Boeing would not fully enclose the main gear when retracted? Wouldn't it be LESS aerodynamic, given that wind would travel into and around the inside of the main gear well?

Matthew Bellette

  • Commercial Member

SPACE. There is no room for all the stuff that would be required to put doors on the gear bays. It also makes the bays smaller as they just need to fit the shape of the wheels and that's it.ATR do the same thing, as do Falcon IIRC on some of their exec jets.Best regards,Robin.

  • Commercial Member
Wonder why Boeing would not fully enclose the main gear when retracted? Wouldn't it be LESS aerodynamic, given that wind would travel into and around the inside of the main gear well?
It's probably nowhere near as big an aerodynamic penalty as you're thinking, it's not like the wheels stick out or anything. It makes the whole system far less complex to maintain too - no gear doors, hydraulics for opening and closing them etc.

Ryan Maziarz
devteam.jpg

For fastest support, please submit a ticket at http://support.precisionmanuals.com

Yeah, I can see how it simplifies the main gear systems. I suppose they weighed up the pro's and con's of weight (of hydraulics for doors, etc) and aerodynamics and came to the conclusion that on this aircraft the benefits of fully-enclosed main gear has minimal positive impact on performance compared to the open-wheel system they use to this day and that any drag, etc would also be minimal in its effect on aircraft performance/handling.

Matthew Bellette

...737undercut_1.jpg
Does that say UR-GAY under the wing?

Mike Avallone

[email protected],Corsair H115i cooler,ASUS 2080TI,GSkill 32GB pc3600 ram, 2 WD black NVME ssd drives, ASUS maximus hero MB

 

I wonder if the door-less gear bay helps with brake cooling?

A.J. Domingo

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