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Atlas Consecutive Success Claim
Said Mark Albrecht, president of International Launch
Services after the successful 2/5/04 launch of AMC-10 by Atlas IIAS AC-165: "Sixty-nine out of 69 launches since 1993 of all Atlas configurations -- a record that is absolutely unmatched in the launch business. The Atlas team is the gold standard of commercial space launch." O.K. Correct as carefully parsed (Arianespace has not had all of its Ariane configurations succeed that many consecutive times), but it is fair to point out that Ariane 4 succeeded in its final 74 attempts, that Tsyklon 2 has a record of 90 consecutive successes dating back to 1973, and that this was only the 27th consecutive Atlas IIAS success and the 60th consecutive success of the Atlas II-series. - Ed Kyle |
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Atlas Consecutive Success Claim
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Atlas Consecutive Success Claim
"ed kyle" wrote in message om... (ed kyle) wrote in message om... Said Mark Albrecht, president of International Launch Services after the successful 2/5/04 launch of AMC-10 by Atlas IIAS AC-165: "Sixty-nine out of 69 launches since 1993 of all Atlas configurations -- a record that is absolutely unmatched in the launch business. The Atlas team is the gold standard of commercial space launch." O.K. Correct as carefully parsed (Arianespace has not had all of its Ariane configurations succeed that many consecutive times), but it is fair to point out that Ariane 4 succeeded in its final 74 attempts, that Tsyklon 2 has a record of 90 consecutive successes dating back to 1973, and that this was only the 27th consecutive Atlas IIAS success and the 60th consecutive success of the Atlas II-series. - Ed Kyle And another thing. ILS said that AC-165 was the 580th Altas. They are including three Atlas Vs here, which had little in common with the original Atlas, as well as four Atlas IIIs, which has a different powerplant than the original Atlas. So, for the purists out there the total is 573 Atlas launches, plus 7 other things called Atlas. - Ed Kyle I vaguely recal losing an X15 vs Atlas arguement with Jim Davis in which he mentioned over a thousand Atlas launchings. This included missle development and training. |
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Atlas Consecutive Success Claim
johnhare wrote:
I vaguely recal losing an X15 vs Atlas arguement with Jim Davis in which he mentioned over a thousand Atlas launchings. This included missle development and training. Your memory is playing you false about the numbers, John. Here is the text of our previous exchange: John Hare wrote: The number of Atlas flights flown by any given time always exceeded the number of X-15 flights flown by the same time. I had no idea that the Atlas had flown 199+ times total, and certainly was unaware of that track record before the X-15 retirement. Here's the cumulative box sco Year Atlas X-15 1957 3 0 1958 17 0 1959 40 4 1960 74 31 1961 111 46 1962 158 76 1963 200 97 1964 233 124 1965 270 156 1966 317 176 1967 349 191 1968 370 199 ------------------------ 1996 538 199 Glenn's flight was the 117th Atlas launch. On another note entirely, the latest Journal of Propulsion and Power (Vol. 17, No. 2, Mar-Apr 2001) has an interesting paper on airturborockets: "Comparison of Methods for Calculating Turbine Work in the Air Turborocket", K. L. Christensen. Jim Davis |
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Atlas Consecutive Success Claim
"Jim Davis" wrote in message . 1.17... johnhare wrote: I vaguely recal losing an X15 vs Atlas arguement with Jim Davis in which he mentioned over a thousand Atlas launchings. This included missle development and training. Your memory is playing you false about the numbers, John. Here is the text of our previous exchange: John Hare wrote: The number of Atlas flights flown by any given time always exceeded the number of X-15 flights flown by the same time. I had no idea that the Atlas had flown 199+ times total, and certainly was unaware of that track record before the X-15 retirement. Here's the cumulative box sco Year Atlas X-15 1957 3 0 1958 17 0 1959 40 4 1960 74 31 1961 111 46 1962 158 76 1963 200 97 1964 233 124 1965 270 156 1966 317 176 1967 349 191 1968 370 199 ------------------------ 1996 538 199 I plead alzhiemers or maybe I'll just deny the previous conversation or something. Sorry about that all. |
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