Sep 1 1967
From The Space Library
Need for design modifications had required shipment of a manned orbital workshop to the McDonnell Douglas Space Systems Center, Huntington Beach, Calif., said Marshall Space Flight Center. Workshop, built by McDonnell Douglas, was model for the Saturn S-IVB stage and when modified would represent Saturn stage as it was to be used in Apollo Applications program as a manned space laboratory. Some 50 ft long and 21.5 ft in diameter, workshop was used at MSFC as an engineering tool in designing structures, equipment, and experiments for the initial mission of 28 days. (MSFC Release 67-181)
FAA proposed maximum speed of 250 knots per hr (288 mph) for all aircraft operating below 10,000-ft mean sea level (MSL) in move designed to give pilots more time to "see and avoid" other air traffic in Nation's moat heavily traveled airspace. Proposed rule would mean a change only for en route aircraft below 10,000 ft MSL. Aircraft arriving at an airport and flying below 10,000 ft MSL had previously been placed under speed limitations: an indicated air speed of 250 knots for all such aircraft within 30 mi of their destination; within immediate terminal area, 200 knots for turbine powered aircraft and 156 knots for piston-engine aircraft. FAA cited growing numbers of high-performance aircraft using airspace below 10,000 ft MSL where virtually all VFR (visual flight rules) flying is done, as well as about half of all IFR (instrument flight rules) flying. FAA said proposed rule would promote safer and more efficient utilization of airspace, since pilots of many high-speed aircraft probably would choose to operate above 10,000 ft MSL for optimum performance and economy. (FAA Release 67-66)
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