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Is there some reason after all the time since the 737 first introduced it that no one else has ever dispensed with main gear inner doors in place of having just conformal openings for stowage of single axle main wheels in aircraft? By now it must have proved to be cost effective (cheaper) and safe for the tires on aircraft? Surely it must be cheaper (unless a Boeing Patent) and safe (due to the temperature variations) to the outer tire facing not occurred to use this design idea.
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There are the Embraer aircraft, the CRJ, the A220. My guess is, until you have taller gear/longer range (the MAX is surely long now), it’s a waste of weight and money. Back to the 737 (MAX) I’m sure they could’ve done gear doors, but still probably a ground clearance issue, plus what I said before.
I don’t always say “Proceed as requested”
But when I do, it is because I have no clue what you just said.It’s a tradeoff of drag vs weight and complexity. If you have shorter hops, the optimum is usually the 737 style. After a certain range, it tips in favor of gear doors. Where that crossover range is, I’m not sure.
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On the Russian side, I’d like to mention the Yak-40 (often forgotten or omitted) as a commuter, as well as the ATRs and the LET L-410 props. It’s probably simply not necessary for short or commuter routes.
Personally, I quite like this design.
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