well, in my experiences in the air force, robots not only fly airplanes, the crash them as well. On a more serious not, they often fertilize the airplanes using robo-seaman, which is derived from a navy invention
Helicopters are generally more dangerous than aeroplanes.
Soon after WW2 helicopters became very popular, reaching a peak of use in the Vietnam war, when the US Army and Marines had more helicopters than all the services regular airplanes
Airplanes that haven't been maintained properly or are operated by a pilot who doesn't have the proper training.
At aviation school you learn how to fly airplanes, helicopters and other more specific air crafts.
There are many more buses than passenger airplanes, so even though buses can be safer per passenger mile, there are more bus crashes. You WAY more likely to be in a bus crash, then in a plane crash. thousands, and thousands of car/automobile's crash every year. And only about a few hundred plane's crash a year.
The Army has more helicopters than any other service - in large part because the only fixed-wing airplanes the Army is allowed to have are Beechcraft King Air planes that are used as executive transports and intelligence collection platforms.
Large commercial aircraft crashes are very rare, making this transport the safest way to travel in the world. Small private airplanes crash much more often, so these accidents would not be rare.
no
They are a different and often more convenient form of transport, not always the best.
The debris from the broken down buildings would enter the engines and crash the heli, therefore killing more people.
Into the twin towers 2 but they crashed 2 more planes- to the pentagon and an open field in Philadelphia