There's only two dedicated attack helicopters - the AH64 and the AH1, with the AH64 being used by the Army, and the AH1 being used by the Marine Corps and some Army National Guard units. Of the two, the AH64 would be more commonplace, as the Army is a much larger branch, and fields a much larger helicopter force than the Marines do. According to Wikipedia, the US has 741 AH64 helicopters, and 167 AH-1W helicopters (although it doesn't give any mention of how many of the older, single engine models ordered by the Army may still be in service with the Army National Guard).
Knights would most commonly trade military service for land known as fiefs from their sprawling estates.
During the Vietnam War, the US Army had the largest helicopter force in the United States.
In WWII it was believed that there was attack dogs but they were not commonly used. Most historical researchers say that Nazi Germany and Japan used attack dogs but only for sentimental usage.
The attack on Pearl Harbor by the Japanese Military.
The MH-60R. It can do EVERYTHING. Look it up
The Apache may be the best "attack" helicopter but the Navy MH 60 S is the most diverse platform and best utility helicopter in the world.
Xch-53
A helicopter flies do to rotorblades rotating. Most helicopters have two rotorblades, one to lift the helicopter off the ground, and the second, most commonly found on the tail, for stability.
The top part of a helicopter would most commonly be considered the rotor blades (which spin to provide lift).
Most commonly for money and land.
Knights would most commonly trade military service for land known as fiefs from their sprawling estates.
In areas where it is still common, children are most affected.
alcohol
Much more complicated than a fixed wing aircraft. -Military helicopter pilots in most services MUST qualify as fixed wing pilots before graduating to helicopters.
During the Vietnam War, the US Army had the largest helicopter force in the United States.
The military helicopter, also known as the Huey, are used for command and control, transportation, and also assault gunships. These helicopters are the most famous military helicopters.
The most addicting helicopter game is the one where you're the pilot of a helicopter, it's the most addicting. For your health.