Soyuz T-3

Soyuz T-3 was launched on 27 November 1980, and carried the 15th expedition to the Salyut 6 space station. The Soyuz T-3 spacecraft was the first Soyuz spacecraft since 1971 that carried three cosmonauts.

Crew

Backup crew

Mission summary

Although the main objective of the crew's mission was to refurbish Salyut 6, part of their mission also involved testing their spacecraft. During their brief stay on Salyut 6, the crew performed experiments using the Splav and Kristall units, and studied biological material which had been carried abroad their Soyuz using the Svetoblok and Oazis units. Much of their time, however, was devoted to station maintenance.

On 2 December they began conducting the Mikroklimat experiment to assess the station’s living conditions, and began work on the thermal control system. They installed a new hydraulic unit with four pumps. On 4 December, they replaced electronics in the station's telemetry system. 5 December saw them repairing electrical system faults. Other repairs included replacement of a program and timing device in the onboard control system and replacement of a power supply unit for the compressor in the refueling system. The Salyut 6 Principal Expedition 4 crew in TsUP provided the crew with advice as they made their repairs. On 8 December, Progress 11 carried out an orbital correction for the complex.

T+3

In financial markets T+3 is a shorthand for trade date plus three days indicating when securities transactions must be settled. T+3 means that when a security is purchased, payment and the security's certificate must change hands no later than three business days after the trade is executed.

History

During the 1700s the Amsterdam stock exchange had close links with the London stock exchange and they would often list each other's stocks. To clear the trades, time was required for the physical stock certificate or cash to move from Amsterdam to London and back. This led to standard settlement period of 14 days which was the time it usually took for a courier to make the journey on horseback and by ship. Most exchanges continued to use the same model over the next few hundred years. With the advent of new technology in the 1970s and 1980s there was a move to reduce settlement times and settlement dates in most exchanges reduced to five days known as T+5 then to three days (known as T+3 or Trade date plus three days).

T3

T3 or T-3 may refer to:

Medicine

Vehicles and transportation

Technician third grade

Technician Third Grade (officially abbreviated as T/3) was one of three United States Army technician ranks established on January 8, 1942 during World War II. Those who held this rank were often addressed as Staff Sergeant, as they shared the same pay grade, but technicians did not have the authority to give commands as a staff sergeant would. Initially they shared the same insignia but on September 4, 1942, the three technician ranks were distinguished by a block "T" imprinted below the standard chevrons. Unofficial insignia using a technical specialty symbol instead of the T were used in some units.

See also

References