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 Date: 2009-06-15 10:48:48Middle States Association of Colleges and Schools Pratt Brooklyn Pratt Center for Community Development Pratt Institute New York Culture of New York City |
| A-12, YF-12A, & SR-71 Timeline of Events JuneMay 1956 Pratt & Whitney contract to develop engine(JT9) for CL-400; J-58 (JT 11D-20) is 80% size of JT9 (SME)1 May 1956 Pratt & Whitney contract to develop engine(JT9DocID: 1xTqI - View Document |
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