We recall from the witness descriptions that the hijacker of Flight 305 was Caucasian (with a minority suggesting that he had something Latin about him) the most credible estimate of his age was in the range 40-49 and the most credible estimate of his height was in the range 5’10” to 6’0”. By Fermi’s method, about 181 residents of Portland would have had parachuting experience. If those males with parachuting experience were distributed randomly throughout the country, in any given location a randomly selected male would have a probability of 1 in 989 of being among them.Īt the same census, Portland had a population of 382,619 of whom 179,163 were male. The census of Apenumerated 98,912,192 males in the United States. Following Fermi, I was content with a round number of about 100,000.įemale skydivers may forgive me for assuming that, in the 1970s, practically all of these persons were male. Conversely, I should have subtracted those who, since their jumping days, had passed away peacefully or otherwise. I suppose I should have added a few airborne soldiers from the Vietnam war (although in that war, practically all insertions were by helicopter) and a very few specialised military operatives such as HALO jumpers and Navy SEALs. Probably, I should have added a few hundred loadmasters from C-124 squadrons in the US Air Force. There were at least 10,000 members of sport skydiving clubs.To these numbers, I should have added the 446 smokejumpers who were registered with the US Forest Service.ğrom the single airborne battalion that served in the Korean war, there would have been up to 1,500 soldiers with jump experience.
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