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Thiokol (thī´ōkôl), brand name for polysulfide polymer using a mercaptan bond. The basic ingredient of rubber-base impression materials. See also mercaptan.
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Over the next 30 years, as an independent enterprise and as a division of Thiokol Chemical Company after April 1958, Reaction Motors built increasingly powerful rocket engines to propel U.
Finally, a trio of equidistantly placed Reaction Motors Division (RMD) Vernier engines slowed several Surveyor spacecraft for lunar soft landings during 1966-1968.
The remaining seven chapters are edited papers prepared and presented by several of the founders of RMI and follow the development of RMI until acquisition by Thiokol as Reaction Motors Division (RMD) and the eventual dissolution of the division in 1972.
Ordway present readers with a history of early American advancement in rocketry from 1941 through 1972, focusing on the story of The Reaction Motors company.