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…. About …. …. Helicopters .…. Helicopters. By: David. Invention of the Helicopter. Igor Sikorsky. Uses. War. Rescue. Transport. Toys. Negatives. Positives. Finance. Helicopter Costs: 3-15 million dollars. Depends on if you want them new or used. Thank you for watching.
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…. About …. …. Helicopters .…
Helicopters By: David
Invention of the Helicopter Igor Sikorsky
Uses War Rescue Transport Toys
Finance Helicopter Costs: 3-15 million dollars. Depends on if you want them new or used.