Hughes XH-17 "Flying Crane" pressure jet helicopter. At 130 feet, the main rotor of the XH-17 was the largest ever flown. More information is available at https://vertipedia.vtol.org/milestones.cfm?milestoneID=29. From Vertiflite, Fall 2004 (page 53).

Hughes XH-17 pressure-jet helicopter

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Hughes XH-17 "Flying Crane" pressure jet helicopter. At 130 feet, the main rotor of the XH-17 was the largest ever flown. More information is available at https://vertipedia.vtol.org/milestones.cfm?milestoneID=29. From Vertiflite, Fall 2004 (page 53).

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