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The maximum height, width, and length of general Chinese rolling stock are 4,800 mm (15 ft 9 in), 3,400 mm (11 ft 2 in) and 26 m (85 ft 4 in) respectively, with an extra out-of-gauge load allowance of height and width 5,300 by 4,450 mm (17 ft 5 in by 14 ft 7 in) with some special shape limitation, corresponding to a structure gauge of 5,500 by ...
The vessel's clearance is the distance in excess of the air draft which allows a vessel to pass safely under a bridge or obstacle such as power lines, etc.A bridge's "clearance below" is most often noted on charts as measured from the surface of the water to the underside of the bridge at the chart datum Mean High Water (MHW), [3] [4] a less restrictive clearance than Mean Higher High Water ...
The FAA states "The height–velocity diagram or H/V curve is a graph charting the safe/unsafe flight profiles relevant to a specific helicopter. As operation outside the safe area of the chart can be fatal in the event of a power or transmission failure it is sometimes referred to as the dead man's curve ."
The camber is a measure of lateral main deck curvature in naval architecture. The curve is applied to a deck transversely, measured as the height of deck at centreline above the height of deck at side. The practice of adding camber to a ship's deck originated in the era of small sailing ships.
A lowbridge double-deck bus is a double-decker bus that has an asymmetric interior layout, enabling the overall height of the vehicle to be reduced compared to that of a conventional double-decker bus. The upper-deck gangway is offset to one side of the vehicle, normally the offside (or driver's side), and is sunken into the lower-deck ...
On 16 February 1768 the Royal Society petitioned King George III to finance a scientific expedition to the Pacific to study and observe the 1769 transit of Venus across the face of the sun to enable the measurement of the distance from the Earth to the Sun. [1] Royal approval was granted for the expedition, and the Admiralty elected to combine the scientific voyage with a confidential mission ...
One issue was trying to source enough guns to meet the specification. The major options were a lower gun-deck battery of 24-pounders, with the upper gun-deck being 12-pounders – versus having just 24-pounders on both the gun-decks. Vasa was actually built with upper gun-deck ports sized for the smaller 12-pounders. The final decision, though ...