Question

TELL ME ABOUT FIRST helicopter.....​

Answer 1

Answer:

hope it is help ful

Explanation:

on sep 14 ,1939 ,the vs -300 ,the world's first practial helicopter ,took flight at stratford ,Connecticut . designed by Igor sikorsky and built by the vought -sikorsky air craft division of the united air craft corportion ,the helicopter was the first in corporate a single main rotor and tail rotor design

Answer 2

Explanation:

On September 14, 1939, the VS-300, the world's first practical helicopter, took flight at Stratford, Connecticut. Designed by Igor Sikorsky and built by the Vought-Sikorsky Aircraft Division of the United Aircraft Corporation, the helicopter was the first to incorporate a single main rotor and tail rotor design