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Uploaded by jaglavaksoldier on Sep 21, 2009
A
Science & Technology
Standard YouTube License
German navy U-boats used gyro-copters. No engine. The rotor turned due to forward motion. ie being towed bu the U-boat
binaway 3 months ago
A fake
zimmermann10 2 years ago
1ST COMMENT!!!!
Princeduclare 2 years ago
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German navy U-boats used gyro-copters. No engine. The rotor turned due to forward motion. ie being towed bu the U-boat
binaway 3 months ago
A fake
zimmermann10 2 years ago
1ST COMMENT!!!!
Princeduclare 2 years ago