As for rotaty-wings, my vote goes to the UH-1 Huey, for defining
the the role of the helicopter in modern combat and rescue, and
for beeing perhaps the most famous helicopter of all times.

If not the Bell 47, the pioneer which turned the helicopter concept
into a true efficient and reliable utility platform.

Then I guess the Sikorsky S61/Westlang Seaking, for its invaluable
role especially in maritime SAR operations worldwide.

Then the AH-1 Cobra, for being the first true helicopter gunship
and tankbuster.


Regards...