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During the development of the engine, it was found that a 360 degree crank angle was better suited to the use of a single carburettor than a 180 degree crank angle. [ 24 ] Following the trend created by the Triumph Speed Twin, the most common design used by British motorcycle manufacturers until the mid-1970s was a four-stroke straight-twin ...
[1] [2] O-360-A1C 180 hp (134 kW) at 2700 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1. Same as the A1A except with a rear-mounted Bendix carburetor and 200 series magnetos. [1] [2] O-360-A1D 180 hp (134 kW) at 2700 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1. Same as the A1A except with Bendix 200 series ...
I changed the entry to reflect the fact that a parallel twin is NOT equivalent to a straight two. I have updated this and other articles to remain consistent with the original assertion that "straight twin" is not equivalent to "straight two" but rather means there is a common crank pin (ie making it equivalent to the true meaning of parallel twin), although I don't know whether this is true ...
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These considerations outweigh the convenient divisibility of the number 360. One complete turn (360°) is equal to 2 π radians, so 180° is equal to π radians, or equivalently, the degree is a mathematical constant: 1° = π ⁄ 180. One turn (corresponding to a cycle or revolution) is equal to 360°.
Engine Origin Designer Vehicle Status Use Propellant Power cycle Specific impulse (s) [a] Thrust (N) [a] Chamber pressure (bar) Mass (kg) Thrust: weight ratio [e] Oxidiser: fuel ratio
For example, the arithmetic mean of 0° and 360° is 180°, which is misleading because 360° equals 0° modulo a full cycle. [1] As another example, the "average time" between 11 PM and 1 AM is either midnight or noon, depending on whether the two times are part of a single night or part of a single calendar day.
The difference is known as the drift, and can be determined by the wind triangle. At least seven ways to measure the heading of a vehicle have been described. [ 1 ] Heading is typically based on cardinal directions , so 0° (or 360°) indicates a direction toward true north , 90° true east , 180° true south , and 270° true west .