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The propulsion system for the descent stage of the lunar module was designed to transfer the vehicle, containing two crewmen, from a 60-nautical-mile (110 km) circular lunar parking orbit to an elliptical descent orbit with a pericynthion of 50,000 feet (15,000 m), then provide a powered descent to the lunar surface, with hover time above the lunar surface to select the exact landing site.
The capstan tape speed is 3.7 inches per second, which provided a long record time of up to five hours on large reels. The units were 100% solid state . The Ampex 2-inch helical VTRs were popular, as they were priced much less than the 2-inch quadruplex videotape recorders used in the broadcast television industry at the time.
A reactionless drive is a hypothetical device producing motion without the exhaust of a propellant.A propellantless drive is not necessarily reactionless when it constitutes an open system interacting with external fields; but a reactionless drive is a particular case of a propellantless drive that is a closed system, presumably in contradiction with the law of conservation of momentum.
A full-height rack cabinet. A 19-inch rack is a standardized frame or enclosure for mounting multiple electronic equipment modules. Each module has a front panel that is 19 inches (482.6 mm) wide.
Two-speed rear hubs, that the rider shifted by back pedalling, were common, but some featured external rear derailleurs with 3 or 5 gear ratios and automotive-like gear shifters mounted on the top tube. Brakes. Coaster brakes and rim brakes were common. The 1968 Schwinn Krate models had a front drum brake. [9]
A dog-leg gearbox or dogleg gearbox is a manual transmission shift pattern distinguished by an up-over-up shift between first and second gear. [1] The layout derives its name from a dog's hind leg, with its sharp angles. Dog leg gearboxes were replaced in most mass production vehicles by transmissions with a standard gear layout.
Part of a groupset for an electric-drive bicycle with crankset, motor, boost controller, battery and a smart phone. A groupset or gruppo (from the Italian for "group", sometimes misspelled grouppo) is a bicycle component manufacturer's organized collection of mechanical parts.
The G-series is a 4- and 5-speed manual transmission for rear wheel drive and all wheel drive applications, built by Aisin AI and Toyota Autoparts Philippines. Models: G40 4-speed; G52 5-speed; G53 5-speed; G54 5-speed; G55 5-speed; G57 5-speed 4WD; G58 5-speed 4WD; G59 5-speed 2WD