. . . . . . "The Marquardt MA-74 was a ramjet engine built by the Marquardt Corporation for use in supersonic target drones in the 1960s."@en . . "16.3"^^ . "JP-4"@en . . "Ramjet"@en . "2413"^^ . . . "911731436"^^ . . . . . . . . . . "Haggerty 1966"@en . . . "Marquardt MA-74"@en . . . "The Marquardt MA-74 was a ramjet engine built by the Marquardt Corporation for use in supersonic target drones in the 1960s."@en . . "None"@en . . . "56084141"^^ . . . .