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StarFire is a wide-area differential GPS developed by John Deere's NavCom and precision farming groups. StarFire broadcasts additional "correction information" over satellite L-band frequencies around the world, allowing a StarFire-equipped receiver to produce position measurements accurate to well under one meter, with typical accuracy over a 24-hour period being under 4.5 cm. StarFire is ...
The Holden straight-six motor is a series of straight-six engines that were produced by General Motors Holden at their Port Melbourne plant between 1948 and 1986. The initial Grey motor was so dubbed because of the colour of the cylinder block, later motors came in the form of a Red, Blue, Black, and the four-cylinder Starfire engine.
The purpose of Starfire is to conduct research to use adaptive optics to remove the effects of scintillation (atmospheric turbulence). [1] Turbulence interferes with laser beam integrity over distances. Lasers are being used for long-distance high-bandwidth communications and accuracy in air-to-air laser connectivity is important for data ...
The first model of the series was introduced in 1967 as the C25 Barracuda in the UK and the B25 Starfire in the USA [10] (although the US models had frame and engine numbers prefixed C25). [17] The model was a more sporty replacement for the C15 and, in the UK, aimed at learner riders.
In this case they tested a wide variety of ammunition available in .38 and .357 magnum using a single revolver modified to have a long barrel (so that they could cut it down an inch at a time, as they did with the barrel length tests) and also modified to allow them to change the gap using a set of shims. In this way they were able to test with ...
Nevertheless, there is significantly more to accuracy and cartridge lethality than the length and diameter of the case, and the 7.62×51mm NATO has a smaller case capacity than the .30-06 Springfield, [17] reducing the amount of propellant that can be used, directly reducing the bullet weight and muzzle velocity combination that contributes to ...
Lockheed YF-94 (S/N 48-373). This was the second aircraft built (from TF-80C) On 16 April 1949, the first YF-94 prototype performed its maiden flight. [6] To accelerate development, these early test aircraft were converted from existing T-33s; they maintained roughly 75% commonality in terms of components with those used in the earlier F-80 and T-33As.
An 8-inch US Army field gun in action during the bombardment of Brest.. In 1919, the Westervelt Board described the ideal heavy gun for future development having a bore of 194 mm to 8 inches, a projectile of about 200 lbs in weight, and a range of 35,000 yards.