A Boxelder Tree Seed
Yes
yes, they are actually good for you, one time i had lung cancer and i lived off nothing but helicopter seeds, and within a week i was all better
Brian Rutherford.
Sikorsky's V-300 was the first practical helicopter.
Helicopter Pilot.
I am wondering where was helicopter invented?
what is the meaning of Apache helicopter
There has been no helicopter by that name
In 400 AD there was a toy with the principle and shape of a helicopter. It was not a real helicopter. It was only a toy. The first manned flight was in 1906.
I have heard 'whirlybird'
it is not real
Marine One for helicopter and Air Force One for aero