Part 98, page 210
DB Cooper-44273Serials SE 164-81, SE 164-81-742
Document date 3 December 1971
Another copy of this document is the primary, most legible copy: read it.
FBI 164-81, Vault Part 98 p. 210 (DB Cooper-44273), Memo, dated 3 Dec 1971, serial SE 164-81-742 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-98/pages/210
Transcript
The scan is the source; the transcript is machine-generated from it.
OPTIONAL FORM NO. 10 MAY 1962 EDITION GSA FPMR (41 CFR) 101-11.6
UNITED STATES GOVERNMENT Memorandum
TO : SAC, SEATTLE (164-81)(P) DATE: 12/3/71
FROM : SA ROBERT ROSS REYNOLDS and SA DONALD J. STEELE [REDACTED]
SUBJECT: UNKNOWN SUBJECT, aka Dan Cooper NORTHWEST AIRLINES FLIGHT #305, PORTLAND TO SEATTLE, 11/24/71 CAA-HIJACKING; EXTORTION OO: SEATTLE
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Sub Parachutes
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On 12/3/71, [REDACTED], Seattle, Washington, telephone [REDACTED], advised as follows:
Q. [REDACTED], given the following set of circumstances, the Boeing 727 which you are generally familiar with, the rear stairway flying at 10,000 feet through clouds at about 178 knots on IFR Flight, 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.
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164-81-742 SEARCHED _____ INDEXED _____ [SERIALIZED] [FILED] DEC 6 1971 FBI — SEATTLE
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RRR/DJS:md (1)
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Buy U.S. Savings Bonds Regularly on the Payroll Savings-Plan
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DB COOPER-44273