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1 cze 2020 · Engine power and gross weight reveal surprisingly little about how much runway an airplane needs for takeoff and landing—or the speeds at which it climbs, cruises, approaches, and stalls. If you want to know those things, pay close attention to an airplane’s “wing loading” and “power loading.”
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15 lut 2021 · Sg is quite easy to calculate and its value at the muzzle has to be absolutely over 1.0 for a bullet to be stable. In practice some safety margin is needed there so the recommended minimum value is 1.4.
24 mar 2024 · Calculating landing speed. The landing speed for a transport category aircraft is called Vref (landing reference speed). This speed is calculated by multiplying the stall reference speed of the aircraft in landing configuration (Vsr0) by a factor of 1.3 (1.3 x Vsr0). For aircraft with a fly-by-wire protection system, this factor is reduced to 1.23.
5 kwi 2018 · There are lots of ways to describe what ballistic coefficient is. The definition according to Wikipedia is, “the ballistic coefficient (BC) of a body is a measure of its ability to overcome air resistance in flight.” Put another way, it’s the ratio of the bullet’s sectional density to its coefficient of form.
Once the bullet is launched, its trajectory is determined by its velocity, shape and weight. Which brings us to those imposing terms, sectional density and ballistic coefficient. Sectional density is the weight of a bullet in pounds, to the square of its diameter in inches.
2 cze 2023 · Importance: Glide ratio determines the aircraft’s ability to maximize the distance covered during unpowered flight, influencing landing options and emergency procedures. Calculation: Glide ratio is determined by dividing the distance covered horizontally by the altitude lost during the glide.
17 cze 2022 · Ballistic Flight Equations. On this page: Motion. Velocity. On Earth a baseball or a soccer ball generates a moderate amount of aerodynamic drag and the flight path is not strictly ballistic. Ballistic flight is, however, a first approximation to the flight of a ball.
