Soviets Renaw Interest in Lunar Landing Studies: ecent issueoviet periodical, two papers related to the landing and lift-off sequenceunararc presented. The authors determine the magnitude and direction of the vehicle thrusto optimize
the trajectory down from and back to lunar orbit.
Cpr.-eit: These articles are indicative of the re-newod Soviet interest Jn the executionunar landing and recovery. Skepticism about the success ofission appear? to have disappeared in the wake of the US Apollo accomplishments. In the past, Sovieton the dynamics of lunar landings have been notably absent from the referenced periodical, which is th* leading open publication on space sciences in the USSR.
The relevance of the computation of optimal thrusting programs is that, although such programs are usually too complex to be implemented in the actual system, theytandard with which to compare the expected effectiveness of suboptimal but less complex actual control programs.Original document.