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Because 2.31 feet (0.70 m) of elevation translates into 1 psi of pressure (for water), calculating pressure to 1 psi precision requires elevation data that's accurate to roughly 2 feet (0.61 m). Normal elevation data that is accurate to the nearest 10 feet (3.0 m) will result in pressure that is accurate to roughly 4 psi.
Take for example a vehicle which had its cold inflation tire pressure set near Denver (altitude 5300 feet), and is descending towards Los Angeles (altitude 300 feet). The tires could become underinflated by as much as 2.5 psi. Cold inflation pressure should therefore be readjusted after any significant changes in altitude.
The fuselage has an external height of 8 ft 4 in (2.54 m), and width of 8 ft 5 in (2.57 m). The production G500 will have 14 windows, two more than the prototype models. [ 16 ] The G600 cabin is 3.7 ft (1.1 m) longer than the G500, allowing up to four passenger zones or three 8.75 ft (2.67 m) long zones, a longer galley and a forward crew rest.
The coupled wheels were of 6 ft 10 in (2.08 m) diameter with a coupled wheelbase of 7 ft 7 in (2.31 m) within a total locomotive wheelbase of 29 ft 6 in (8.99 m). The three cylinders measured 16 + 1 ⁄ 2 in (420 mm) bore by 26 in (660 mm) stroke driving the leading coupled axle, fed by piston valves which were themselves operated by Stephenson ...
The 0-4-4T was essentially a Kitson design with 5 ft 8 in (1.73 m) coupled wheels, and Kitson delivered the first 12 locomotives between April 1877 and July 1878. The first pair, Nos. 111 & 112 had extended side tanks whose weight restricted the route availability of the engines so subsequent locomotives were delivered with shorter side tanks.