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FROM SUBJECT: OPTIONAL, FORM NO, 16 MAY 1982 EDITION GSA FPMR (41 CER) 102-146 | UNITED STATES GOVERNMENT 4 Memorandum SAC, SEATTLE (164-81) (P) DATE: 32/3/71 b6 SA ROBERT ROSS REYNOLDS and fe b7C SA DONALD J. STEELE UNKNOWN SUBJECT, aka Dan Cooper a ut a NORTHWEST AIRLINES Su & Y i OEACH FLIGHT #305, PORTEAND TO SEATTLE, 11/24/71 CAA-HIJACKING; EXTORTION OO: SEATTLE b6 b7C telephone advise as follows: Q.[ __jsiven the following set of circumstances, b6 the Boeing 727 which you are generally familiar with, the bic rear stairway flying at 10,000 feet through clouds at about 178 knots6on IFR Plight, what would be the conditions that would exist as soon as the cabin was depressurized? A. As soon as the hatch was cracked, there would be depression matters of the aircraft. The lowering of the stairwell would create a effect on the entire aircraft because the air flow is disrupted here which would naturally effect the aircraft. Q. This would have no material effect on the jumper physiologically at this altitude? A. No, not at 10,000 feet. Q. This would be a very practical altitude in which to jump? A. Certainly. Q. Would this be an ideal type aircraft from which to make a daylight or night jump? A. Yes. ; SEARCHED ne INDEXED. eaeonns RRR/DJIS:md SERIALIZED [PE Ff (2) (| DES 197 DB Cooper-3376 a . tBl— seal LE - Buy U.S. Savings Bonds Regularly on the Payroll savinls Pla ——— ”