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[DOC File]DRAFT SR-SAG White Paper
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Minimising air-drag entails having a reasonably high ballistic coefficient, which generally means having a launch vehicle that is at least 20 metres (66 ft) long, or a ratio of length to diameter greater than ten. Leaving the atmosphere as early on in the flight as possible provides an air drag of around 300 metres per second (980 ft/s).
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[DOC File]Exterior Ballistics
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A bullet's ballistic coefficient then relates the drag on any bullet to that of the standard bullet. The drag model to use to calculate the ballistic coefficients. Most commercial bullets use the G1, but for some long range bullets, the G7 or G8 is typically a better choice.
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[DOC File]Computer Simulation
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To facilitate the calculation of the ballistic coefficient, we have compiled a PC program (the program BCProj.bas, Appendix B) that uses the system of differential equations of the projectile ...
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[DOC File]TITLE
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The impact velocity is dependent on the entry velocity (at the top of the atmosphere) and the ballistic coefficient, which determines how much the spacecraft will be slowed by the martian atmosphere. Spacecraft sent to Mars in the future will have a range of ballistic coefficients, and entry velocity will be different for each launch ...
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Proceedings - EDGE
The Delta third stage is the last piece of debris released during launch operations. The separated third stage has an area of approximately 3.05 m2 (32.8 square feet) and a Ballistic Coefficient (W/CdA) of 11.2 lb/ft2, which gives an area mass density of approximately 0.02 m2/kg. The third stage occupies the same mission orbit as the yo weights.
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[DOC File]lutzmoeller.net
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Because the Reynolds number is used to calculate the drag coefficient, both inertial and viscous drag forces are represented in the drag coefficient. In practice, the inertial drag forces dominate the problem. Even for small bullets at very low (termination) velocities, the Reynolds number will be greater than 100, so the boundary layer is ...
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[DOC File]Calculations for Penetration Model - Rathcoombe
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Ballistic coefficient. A parameter used to model the satellite characteristics that influence the perturbative acceleration due to drag on a satellite, where is the drag coefficient, is the effective frontal area, and is the mass of the body. Recommended units are m2/kg. Barycenter. The center of mass of a system of bodies. Barycentric ...
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[DOC File]AIAA Astrodnamics Standard
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Regression rate ballistic coefficient. Regression rate ballistic coefficient. Nozzle throat area. Characteristic velocity. Fuel grain port diameter. Specific impulse. ... a thrust coefficient (acquired from calculation using test data) of 5.00, and a throat area of .051 inches squared, the predicted thrust for the larger rocket is approximately ...
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Ballistic coefficient - Wikipedia
The first thing to be found is ballistic coefficient Cballistic. In . ballistic.m, the cross-section area calculated earlier is used. According to SMAD, an approximate value of 2.2 should be used for drag coefficient Cd. Then ballistic coefficient Cballistic is (42) After . ballistic…
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Ballistic coefficient calculation