Quote:
|
Not sure how worse aerodinamically-wise is the roof-mounted air conditioner...
|
That's the least of the problems, it's not even the full width of the roof.
Contrarotating props fail for commercial airliners because of the excessive noise. but here is a setup that has the efficiency (up from Mach 0.55 to 0.80) but is as quiet as the newest high-bypass fanjets. It is done with a variable pitch stator.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
________________
.
.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
|