The Central Intelligence Agency and Overhead Reconnaissance; The U-2 and OXCART Programs, 1954-1974

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~,et NOFOAN
Chapter 6
to be ignited. Since ramjet engines had only been tested in wind tun­
nels, there was no available data to prove that these engines would
work in the application proposed by Convair. The second uncertain
factor was the B-58B bomber that was supposed to achieve Mach 2.2
before launching the FISH above 35,000 feet. This version of the
B-58 was still in the design stage.
Convair's proposal suffered a major setback in June 1959, when
the Air Force canceled the 8-58B project. Conversion of the older,
slower B-58A into a supersonic launching platform for the FISH was
ruled out by the high cost and technical difficulties invol ved.
Moreover, the Air Force was unwilling to part with two aircraft from
the small inventory of its most advanced bomber. Even had the B-588
program not been canceled, however, the FISH proposal would proba­
bly not have been feasible. Convair engineers had calculated that the
added weight of the FISH would prevent the B-588 from achieving
the speed required to ignite the parasite aircraft's ramjet engines.
The Convair proposal was therefore unusable, but the Lockheed
design with its high radar cross section was also unacceptable to the
Land committee. On 14 July 1959, the committee rejected both
Lockheed A· 11
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