The missile division published its second Man-In-Space Development Plan. This plan concentrated on the first phase of the over-all manned lunar program, designated "Man-In-Space-Soonest". During this phase of project development the launch vehicles would be a Thor-Vanguard combination for instrumented tests, and a Thor fluorine second stage combination for the manned flights. This plan, if approved, would place a man in a 150 nautical mile orbit by October 1960 at an approximate cost of $120 million. (USAF Manned Military Space System Development Plan, 2 May 1958, prep by AFBMD)

Members of STG presented the proposed advanced manned spacecraft program to Wernher von Braun and 25 of his staff at Marshall Space Flight Center. During the ensuing discussion, the merits of a completely automatic circumlunar mission were compared with those of a manually operated mission. Further discussions were scheduled.

Seliger launched his 12.8 m long, three-stage rocket at an attempt to reach an altitude of 150 km. The effects of his contracts with the military were apparent. The 74th Panzer batallion at Altenwalde provided security, field communications, two jeeps as command posts, and a helicopter to search for the missile after the flight. The first launch of the day was that of a single-stage rocket to 50 km altitude. The mission was to measure high altitude winds and test the new parachute recovery system. The payload was successfully recovered in Wernerwald. Preparation of the three stage rocket took three hours, leading up to the planned 16:00 launch time. The 6 m long rocket lifted off at 16:03 but only reached an altitude of 120 km.

The Air Force Manned Orbiting Laboratory Systems Program Office requested that MSC present a briefing to selected office and contractor personnel on NASA's progress in safety studies and tests associated with fire hazards aboard manned space vehicles. Information was requested for the MOL program to help formulate studies and activities that would not duplicate MSC efforts. The briefing was given at MSC May 10.

The N1 program was cancelled before the next test flight. Mishin was removed as head of NPO Energia. Kozlov is first asked to replace him, but he prefers to stay in Samara. Glushko is appointed as the second choice. Two fully assembled (serial numbers 8L and 9L), and four partially assembled rockets were available at time of cancellation. These would have been the first to use the new modernized series NK-33/NK-39 engines. 8L was planned for launch in the fourth quarter of 1974. Confidence was high that, based on the massive telemetry received on the 7L flight, that all problems would have been rectified. A total of 3.6 billion rubles was spent on the N1-L3 program, of which 2.4 billion rubles went into N1 development. Those on the project felt that they were within months of finally providing the Soviet Union with a heavy-lift booster. Instead the work was discarded, and Glushko began design of the RLA/Vulkan with entirely new configuration and engines.

Flight Time: 2.3 hours Pilot: Melvill Copilot: Rick Aldrich. Objectives: Engine performance at altitude. New pilot masks and ECS airflow routing. Regulated bleed air control of the aft cabin temperature (to test the capability to heat SpaceShipOne's nitrous oxidizer. Appraisal of new traffic alert system. Results: Engines showed much improved performance up to 50,000 feet. ECS changes confirmed to assure clear windows for landing. Successful bleed air heating test: good control and sufficient energy for SS1 propellant heating.

Suborbital microgravity mission. Kaiser-Threde developed a new payload service system for MAXUS 7, providing 2 independent TV-links with 2 high power HF transmitters and GPS. The recovery system was a BAL ORSA system, modified by Kaiser-Threde, including parachute from DLR.

CDR Sergey Volkov conducted the periodic auditing and restocking of the Russian SSVP (Docking and Internal Transfer System) accessory kits, located in the Soyuz BO (Orbital Compartment), FGB GA (Pressurized Adapter), FGB PGO (Instrumentation Cargo Compartment), Service Module PrK (SM Transfer Compartment), and DC1 (Docking Compartment). Additional Details: here....