Upside down aircraft
Join Date: Oct 2000
Location: N. Europe
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Luckily, there are safeguards preventing the engines from being damaged due to running without oil in this situation. The fuel system will almost immediately cut out the fuel, thus stopping the engines.
Aviator Extraordinaire
Join Date: May 2000
Location: Oklahoma City, Oklahoma USA
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Well who cares about the lack of oil and/or the engines dying of fuel starvation when one has coffee dripping on his head after rolling right side up.
Although aerodynamically it should be possible to not use the engines and glide inverted to a suitable landing aerodrome, rolling right way up on short final. I'm sure someone with too much free time can try this out on a sim... 
Join Date: Feb 2011
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A wing like that isn't going to be able to do much of a CL on the negative side, so you'd have to be going pretty fast. Combined with the fuel starvation to the engines, you're going to be dropping like a shuttle on re-entry. The wing structure might also not like that loading. Other than that, I don't see any problems. 
Join Date: Apr 2000
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I think alot of guys are missing the point of the original question - at the risk of sounding boring - of course the 737 can fly upside down for prolonged periods of time - or else they wouldn't be certified for use in Australia!
Join Date: Feb 1998
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....or anywhere around Antarctica for that matter.
In the old days during 737 sims we'd shoot the ILS (and G/A
proc) flying it upside down. Bit tricky S/E but after a while one
got the hang of it.
In the old days during 737 sims we'd shoot the ILS (and G/A
proc) flying it upside down. Bit tricky S/E but after a while one
got the hang of it.
