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  2. Unrotated Projectile - Wikipedia

    en.wikipedia.org/wiki/Unrotated_Projectile

    The Unrotated Projectile (UP) was a British anti-aircraft and ground-bombardment rocket of the Second World War. The original 7-inch version was developed for the Royal Navy by Alwyn Crow of the Projectile Development Establishment of the Ministry of Supply at Fort Halstead .

  3. External ballistics - Wikipedia

    en.wikipedia.org/wiki/External_ballistics

    Projectile or bullet length also affects limit cycle yaw. Longer projectiles experience more limit cycle yaw than shorter projectiles of the same diameter. Another feature of projectile design that has been identified as having an effect on the unwanted limit cycle yaw motion is the chamfer at the base of the projectile.

  4. Ballistics - Wikipedia

    en.wikipedia.org/wiki/Ballistics

    A sling is a projectile weapon typically used to throw a blunt projectile such as a stone, clay or lead "sling-bullet". A sling has a small cradle or pouch in the middle of two lengths of cord. The sling stone is placed in the pouch. The middle finger or thumb is placed through a loop on the end of one cord, and a tab at the end of the other ...

  5. Range of a projectile - Wikipedia

    en.wikipedia.org/wiki/Range_of_a_projectile

    θ is the angle at which the projectile is launched; y 0 is the initial height of the projectile; If y 0 is taken to be zero, meaning that the object is being launched on flat ground, the range of the projectile will simplify to: = ⁡

  6. Projectile - Wikipedia

    en.wikipedia.org/wiki/Projectile

    In projectile motion the most important force applied to the ‘projectile’ is the propelling force, in this case the propelling forces are the muscles that act upon the ball to make it move, and the stronger the force applied, the more propelling force, which means the projectile (the ball) will travel farther. See pitching, bowling.

  7. Sub-caliber ammunition - Wikipedia

    en.wikipedia.org/wiki/Sub-caliber_ammunition

    Sub-caliber armour-piercing discarding sabot projectile. Here seen with and without its sabot as well as its internal tungsten core. The most traditional way to fire sub-caliber ammunition is to fit the projectile with an expendable sabot. The sabot is a device which fills out the missing caliber when the projectile is fired and then leaves the ...

  8. Upside-down plane: Experts weigh in on Delta flight flip-over ...

    www.aol.com/upside-down-plane-experts-weigh...

    The drill is familiar for most airline passengers: how to buckle up your seat belt, put on the oxygen masks and use the seat cushion as a flotation device.

  9. Trajectory - Wikipedia

    en.wikipedia.org/wiki/Trajectory

    Projectile Lab, JavaScript trajectory simulator; Parabolic Projectile Motion: Shooting a Harmless Tranquilizer Dart at a Falling Monkey by Roberto Castilla-Meléndez, Roxana Ramírez-Herrera, and José Luis Gómez-Muñoz, The Wolfram Demonstrations Project. Trajectory, ScienceWorld. Java projectile-motion simulation, with first-order air ...