The max speed of an MD80 is 500kt, cruising speed around 440kt.
if you're at a good show, they do.
American Airlines uses several different types of airplains for different travel lengths, including Boeing aircrafts such as the MD80, 737, 757, and 767. They also use smaller jets and prop planes for shorter flights.
133 to 140 knots
In an md80 id say around an hour
Fighter aircraft achieve high speeds by use of a high-efficiency turbofan engine. The air is compressed by high speeds and by a turbofan, and is mixed with gasoline. The highly flammable mix of gasoline and oxygen is ignited, and exhaust from the combustion propels the craft.
Around 30 to 172 passengers depending on variant and seating configuration.
The math behind aircrafts is very complex gemoetry and physics.
There are about 312000 aircraft's in the world and out of them 17700 are passenger carrier aircrafts
Most Gulfstream Aircrafts range in price from 37 million to 62 million for new aircrafts, however if you would like a pre-owned aircraft it is considerably cheaper.
boeing
Aircrafts and boats and something else I forgot
aircrafts and fast cars are streamlined so that the air flows over them more easily