Part 64, page 182
DB Cooper-26998Serials SE 164-81
Document date 6 December 1971
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FBI 164-81, Vault Part 64 p. 182 (DB Cooper-26998), Memo, dated 6 Dec 1971 — cooper.theunsolved.net/parts/Cooper-Part-64/pages/182
Transcript
The scan is the source; the transcript is machine-generated from it.
SE 164-81
Q. In a free-fall from 10,000 feet to approximately 2,000 feet, what would be his rate of speed at rip cord pull?
A. 120 miles per hour which is normal free-fall terminal speed within the atmosphere because the speed increases upon the increase of altitude.
Q. What would the possibility be of the jumper suffering ankle or leg injuries in wearing oxford street shoes?
A. No more than if he had jump boots on. It shouldn't create any problem. [REDACTED]
From the information furnished regarding the above situation, it is my opinion that this jumper was experienced and I would say having at least 150 jumps.
Q. What would your guess be as to the number of jumpers in the country that could pull this type of jump off?
A. At least 1000 people.
In the "Parachutist" put out by the U. S. Parachute Association, there are listed the names and state from which they are from for every individual which has obtained a license, whether it is Class A, B, C, D, or I.
A Class C jumper could have made the above jump. There are currently 7192 licensed Class C jumpers-to say nothing of Class D or I.
As of this month, there are 3094 Class D jumpers.
Class I is not given.
The above figures do not include military personnel that have done high altitude free-fall jumps. There is no way to determine how many jumpers would be in that category.
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DB Cooper-26998