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The currently operational variant, Atlas V, has flown 81 consecutive missions without failure between October 2007 and January 2022. Due to the size of the list, it has been split by decade: List of Atlas launches (1957–1959) List of Atlas launches (1960–1969) List of Atlas launches (1970–1979) List of Atlas launches (1980–1989)
The console's modular design, invented by Walker, became the 500-series format, and Walker and Lindauer co-founded Automated Processes, Inc. (API) in 1969. [1] API's 500-series modules include the 512C preamplifier, the 525 compressor, the 527 compressor, the 550A and 550B semi-parametric equalizers, and the 560 graphic equalizer. [2]
In cooler climates, the most common types are the disc harrow, the chain harrow, the tine harrow or spike harrow and the spring tine harrow. Chain harrows are often used for lighter work, such as leveling the tilth or covering the seed, while disc harrows are typically used for heavy work, such as following ploughing to break up the sod.
A disc harrow is the preferred method of incorporating both agricultural lime (either dolomitic or calcitic lime) and agricultural gypsum, and disc harrowing achieves a 50/50 mix with the soil when set correctly, thereby reducing acid saturation in the top soil and so promoting strong, healthy root development.
Harrows, whether spring tooth, spike tooth or disc harrows can have a drag connection or have a 3 point mounting. A drag harrow is pulled and cannot be backed up. Three point implements can be raised and lowered hydraulicly and maneuvered more easily. A spring-tooth harrow is a type of harrow, and specifically a type of tine harrow. It uses ...
The Atlas V's first stage is called the Common Core Booster (CCB), which continues to use the Energomash RD-180 introduced in the Atlas III, but employs a rigid framework instead of balloon tanks. The rigid fuselage is heavier, but easier to handle and transport, eliminating the need for constant internal pressure.
Atlas V [a] is an expendable launch system and the fifth major version in the Atlas launch vehicle family. It was designed by Lockheed Martin and has been operated by United Launch Alliance (ULA) [b] since 2006. It is used for DoD, NASA, and commercial payloads. It is America's longest-serving active rocket.
The Atlas C was still an R&D vehicle and NASA wanted instead to use the operational D-series Atlas for space launches, but there were none available and they had to instead settle for a modified C-series. Atlas 9C was assigned to the Pioneer-Able program and received several modifications for the mission, including deletion of vernier solo mode ...