AF flight 11. X-1A reached 27374 m. Encountered same instability Yeager had, but at mach 1.97. Murray recovered after tumbling 6100 m down to 20130 m. References: 49 , 97 .

Sunfollower spectrograph. Launched at 0713 local time. Reached 58 km.

USAF Thor flight tested for the first time from a tactical-type launcher at Cape Canaveral.

At an STG staff meeting, Director Robert R. Gilruth suggested that study should be made of a post-Mercury program in which maneuverable Mercury spacecraft would make land landings in limited areas. References: 16 .

At a staff meeting, Space Task Group Director Robert R. Gilruth suggested studying a Mercury follow-on program using maneuverable Mercury capsules for land landings in predetermined areas.

Decree 191 'On creation of OKB-1 Branch No. 2 at Krasnoyarsk-26 GKOT' was issued. References: 474 .

Central Committee and Council of Soviet Ministers Decree 587-238 'On the Realisation of the Plan to Master Cosmic Space in 1960 and the First Half of 1961 -creation of a four-stage launcher for interplanetary missions and schedule for the Korabl-Sputniks' References: 474 .

Unsuccessful first attempt to launch Molniya communications satellite. References: 64 , 65 .

KH-4A. Highest quality imagery attained to date from the KH-4 system. References: 1 , 2 , 5 , 6 .

KH-7 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). References: 1 , 2 , 5 , 6 , 278 .

NASA released a new AAP launch readiness and delivery schedule. The schedule decreased the number of Saturn flights to 11 Saturn IB flights and one Saturn V flight. It called for three Workshops. One of the Workshops would be launched by a Saturn IB, and another would serve as a backup. The third Workshop would be launched by a Saturn V. The schedule also included one ATM. Launch of the first Workshop would be in November 1970. Lunar missions were no longer planned in the AAP.

High resolution photo reconnaissance satellite; returned film capsule; also measured atmospheric composition. References: 1 , 2 , 6 .

Central Committee of the Communist Party and Council of Soviet Ministers Decree 'On standardised weather satellite system' was issued. The resolution also ordered VNIIEM to develop a parallel design of another meteosat for the hydrology office alone. This was not put into production. References: 474 .

Final X-24A flight. Maximum Speed - 867 kph. Maximum Altitude - 16581 m. Flight Time - 517 sec. References: 49 , 97 .

Start structural assembly crew module, Enterprise (OV-101) References: 15 .

Military navigation satellite. Replaced Cosmos 1141. References: 1 , 2 , 5 , 6 .

Subscale Spiral spaceplane. After 1.25 revolutions of the earth, deorbited and recovered by Soviet naval forces in the Indian Ocean at 17 degrees South, 98 degrees East, 560 km south of Cocos Islands. Made a 600 km cross-range maneuver during reentry. The recovery was filmed by an Australian Orion reconnaissance aircraft, revealing the configuration to the West for the first time. References: 1 , 2 , 5 , 6 .

Covered Oko constellation plane 1 - 274 degree longitude of ascending node. References: 1 , 2 , 5 , 6 , 100 .

Oceanography. Gathering of up-to-date oceanographic information and data on ice conditions in the interests of the Soviet economy and international cooperation. References: 1 , 2 , 5 , 6 .

The Cluster satellites were a series of sophisticated earth-observation platforms that were to be launched aboard the first Ariane 5. The explosion of the booster led to a costly setback for European space science. There were no back-up spacecraft. Some instruments may fly on other future satellites. References: 4 .