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Description
A Vietnam War-era Boeing Vertol CH-46 Sea Knight "Phrog" tandem-rotor helicopter from U.S. Marine Corps squadron HMM-774, which converted to Osprey tiltrotors in 2015 and became USMC squadron VMM-774, is displayed at the Smithsonian National Air and Space Museum's Steven F. Udvar-Hazy Center in Chantilly, Virginia.

Description
A Vietnam War-era Boeing Vertol CH-46 Sea Knight "Phrog" tandem-rotor helicopter from U.S. Marine Corps squadron HMM-774, which converted to Osprey tiltrotors in 2015 and became USMC squadron VMM-774, is displayed at the Smithsonian National Air and Space Museum's Steven F. Udvar-Hazy Center in Chantilly, Virginia.