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VHF is the first band at which wavelengths are small enough that efficient transmitting antennas are short enough to mount on vehicles and handheld devices, a quarter wave whip antenna at VHF frequencies is 25 cm to 2.5 meter (10 inches to 8 feet) long.
The Rainbow-class submarines were designed as improved versions of the Parthian class and were intended for long-range operations in the Far East.The submarines had a length of 287 feet 2 inches (87.5 m) overall, a beam of 29 feet 10 inches (9.1 m) and a mean draft of 13 feet 10 inches (4.2 m).
The longest trail is 6,400 feet (2,000 m) in length; the mountain has 164 acres (0.3 sq mi; 0.7 km 2) of skiable terrain. Although it receives an average of only 33 inches (840 mm) of natural snowfall per year, natural snow is supplemented with 100% snowmaking coverage.
In terms of judging a person's speed, the best method of timing is through lasers which start and stop the times when passed through. A laser start (from a stationary position) is more accurate for measuring pure speed as it does not register a runner's reaction time, however, this method of timing a 40-yard dash can affect the accuracy by as much as 0.5 seconds with the manual stopwatch method.
The maximum grade of the completed Bayshore Cutoff is 15.8 feet per mile (2.99 m/km) (0.3% grade) compared to the 3% maximum grade of the older route. [15] The maximum elevation of the Bayshore Cutoff is 20.3 feet (6.2 m), while the prior route rose to 292 feet (89 m) above sea level.
The M139 engine is based on the current M260 engine, which is an upgraded version of the outgoing M270, sharing the same bore and stroke dimension as well as the block.. Unlike the normal M260, the AMG engineers rotated the engine block 180 degrees so that the intake system is in the front of the engine, while the turbochargers and exhaust headers are situated between the engine and firewall
The most rainfall in 24 hours was 4.75 inches (121 mm) on December 31, 2022. [87] Rainfall near the bayfront is only 23 inches (580 mm), but is higher in the Oakland Hills to the east (up to 30 inches [760 mm]), with nearly all precipitation falling between November and April.
The Mount Washington Auto Road—originally the Mount Washington Carriage Road—is a 7.6-mile (12.2 km) private toll road on the east side of the mountain, rising 4,618 feet (1,408 m) from an altitude of 1,527 feet (465 m) at the bottom to 6,145 feet (1,873 m) at the top, an average gradient of 11.6%. The road was completed and opened to the ...