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Primary and secondary reciprocating-plane balance is perfect. Primary and secondary rotating-plane imbalances are present. Straight-six engines typically use a 120° crankshaft design, a firing order of 1–5–3–6–2–4 cylinders and have the following characteristics:
Straight-line motion is linear motion of definite length or "stroke", every forward stroke being followed by a return stroke, giving reciprocating motion. The first such mechanism, patented in 1784 by James Watt , produced approximate straight-line motion, referred to by Watt as parallel motion .
A time–distance diagram is a chart with two axes: one for time, the other for location. The units on either axis depend on the type of project: time can be expressed in minutes (for overnight construction of railroad modification projects such as the installation of switches) or years (for large construction projects); the location can be (kilo)meters, or other distinct units (such as ...
They graphically display information showing where and when each mechanism is stationary or performing its forward and return strokes. Timing charts allow designers to qualitatively describe the required kinematic behavior of a mechanism. [6] These charts are also used to estimate the velocities and accelerations of certain four-bar links.
Wright's 225 hp (168 kW) J-5 Whirlwind radial engine of 1925 was widely claimed as "the first truly reliable aircraft engine". [7] Wright employed Giuseppe Mario Bellanca to design an aircraft to showcase it, and the result was the Wright-Bellanca WB-1, which first flew later that year.
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South Africa won a bilateral Twenty20 series for the first time in more than two years when it chased down Pakistan's 206 on Friday. Opener Reeza Hendricks' maiden T20 century, 117 off 63 balls ...
A Boeing 747 en route from New York JFK to Liege, Belgium, was forced to turn around on November 9 after a horse got loose out of the cargo hold. Plane turns back to JFK after horse escapes on ...