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[5] [6] In 1981, the company introduced its first two bikes: the Sequoia, a sport-touring design, and the Allez, a road bike. [7] Specialized also introduced the first major production mountain bike in the world, the Stumpjumper, in 1981. Like the Sequoia and Allez, the Stumpjumper was designed by Tim Neenan and based on an early Tom Ritchey ...
There are three chainrings with half-step differences between the larger two and multi-range differences between the smaller two, e.g. chainrings 24-42-46 and cogset 12-14-16-18-21-24-28-32-36. [12] This general arrangement is suitable for touring with most gear changes being made using the rear derailleur and occasional fine tuning using the ...
The two Cirrus K have a reduced span (12.6m), larger ailerons, a cross tail with larger elevator, and a strengthened fuselage which make them suitable for aerobatics. This modification was initiated by Wilhelm Düerkop in the late 1980s. [2] [3] Wolfgang Seitz took part in the 1995 World Glider Aerobatic Championships with a Cirrus K. [4] G/81
In the position shown, the counting wheel meshes with three of the nine teeth of the Leibniz wheel. A Leibniz wheel or stepped drum is a cylinder with a set of teeth of incremental lengths which, when coupled to a counting wheel, can be used in the calculating engine of a class of mechanical calculators.
There were many specialized slide rules for photographic applications. For example, the actinograph of Hurter and Driffield was a two-slide boxwood, brass, and cardboard device for estimating exposure from time of day, time of year, and latitude. Specialized slide rules were invented for various forms of engineering, business and banking.
The first calculator capable of symbolic computing was the HP-28C, released in 1987. It could, for example, solve quadratic equations symbolically. The first graphing calculator was the Casio fx-7000G released in 1985. The two leading manufacturers, HP and TI, released increasingly feature-laden calculators during the 1980s and 1990s.
On February 19, 2007, Sirius announced a merger deal with competitor XM Satellite Radio. [27] If the pending merger received government approval, which was required because of antitrust considerations, it would combine the two services into a single satellite radio network in the United States and would be named Sirius/XM Radio.
Data from Cirrus website and The Incomplete Guide to Airfoil Usage General characteristics Crew: one Capacity: four passengers Length: 26 ft 0 in (7.92 m) Wingspan: 38 ft 4 in (11.68 m) Height: 8 ft 11 in (2.72 m) Airfoil: Roncz Empty weight: 2,269 lb (1,029 kg) Gross weight: 3,600 lb (1,633 kg) Fuel capacity: 92 US gallons (348 litres) Powerplant: 1 × Continental IO-550-N Six cylinder ...