toptalent

First Successful Helicopter Flight in 1939: Invented by Igor Sikorsky

Name: First Successful Helicopter Flight in 1939 Invented by Igor Sikorsky
Uploaded: 2022-12-19T21:12:34+00:00
Duration: 41 s
Channel: raptureausculation
Description: toptalent

Video Credits to: u/RaptureAusculation