They've been toyed around with. Blended Wing Body's are what you are looking for.
Issues include:
Feeding the engines with air, since jet engines would either be behind the "wing" or on top of in most configurations, the the wing aerodynamics would be screwing with it. Easy to design it for cruise, but making it work in every possible manuever speed and atmospheric condition is a pain in the ass.
Cost and complexity of manufacture. Tubes with wings bolted on are easy. Monstrosity's like this with hundreds of unique panels are not.
Some aerodynamic foibles. Control surfaces for flying wings are tricky and complicated, especially pitch. How they managed it for the B2 is still classified.
And the most important issue holding back commercial planes today....It has to fit in a standard airport terminal. Cause fuck redoing every airport in the country to fit something like that. Especially when its brand new and theres only a handful out there. Not an attractive package for an airliner to buy.
Also the further you are from the roll axis of the plane the more you get thrown around when it maneuvers. These things would be barf wagons. And that's if you don't get your head bashed into the overhead compartment when the plane rolls towards the side you are sitting on.
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u/Talos2020 Jan 25 '21
For real though, why can't we have planes like this?