transport carry and guard
bullets,fueling aircrafts
People are still fascinated by aircrafts. The interest in aircrafts has never changed. New airplanes are always welcomed in the markets.
I'm not sure how narrowly defined you want your categories, but here are a few: Freight Passenger Firefighting Military: (many types including attack, fighter, bomber, patrol, etc.) Research: weather, exploration, etc. And then you have further breakdowns such as seaplanes and land planes.
the wigmaker today uses real hair from people-
This can vary within different aircrafts within both different and the same airlines, some airlines can carry up to 452 passengers on their 747's and only 344 on another one of their aircrafts.
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.
the uses of cryystals today is of making jewlery
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
Your mom has uses of genetic engeineering today dick :D
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.
A person can see an F 18 in flight by attending an airshow. Airshows are put on to show the public what aircrafts are out there today and what they are capable of.