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A barrel roll turn, or simply barrel roll, is a turn that involves casting the arms up and leaping into the air and rotating 360 degrees while airborne. While airborne, the performer's back may be arched and the head may be cast back. It starts and ends with the performer facing forward. Barrel roll turns are commonly used in tap, jazz, and ...
A high-g barrel roll, performed over the top and underneath. A high-g barrel roll is a last-ditch defensive maneuver, performed when the attacker has achieved a suitable firing solution. The maneuver is performed when the attacker is very close, and a barrel roll performed by the defender may cause an overshoot.
The 707 was based on the 367-80 "Dash 80" The six-abreast cabin. During and after World War II, Boeing was known for its military aircraft. The company had produced innovative and important bombers, from the B-17 Flying Fortress and B-29 Superfortress to the jet-powered B-47 Stratojet and B-52 Stratofortress, but its commercial aircraft were not as successful as those from Douglas Aircraft and ...
In aerobatics, the cobra maneuver (or just the cobra), also called dynamic deceleration, among other names (see Etymology), is a dramatic and demanding maneuver in which an airplane flying at a moderate speed abruptly raises its nose momentarily to a vertical and slightly past vertical attitude, causing an extremely high angle of attack and momentarily stalling the plane, making a full-body ...
Tossing a coin. Coin flipping, coin tossing, or heads or tails is the practice of throwing a coin in the air and checking which side is showing when it lands, in order to randomly choose between two alternatives, heads or tails, sometimes used to resolve a dispute between two parties. It is a form of sortition which inherently has two possible ...
Even if conventional defense systems react fast enough, they are expensive and only a limited number of large interceptors can be carried. A railgun projectile can reach several times the speed of sound faster than a missile; because of this, it can hit a target, such as a cruise missile, much faster and farther away from the ship.
Muzzle velocity. Muzzle velocity is the speed of a projectile ( bullet, pellet, slug, ball / shots or shell) with respect to [1] the muzzle at the moment it leaves the end of a gun 's barrel (i.e. the muzzle ). [2] Firearm muzzle velocities range from approximately 120 m/s (390 ft/s) to 370 m/s (1,200 ft/s) in black powder muskets, [3] to more ...
The rick person takes the second barrel and delivers it to the setter. His job is to help the barrels roll down the final rail and to reposition any barrels that either impact the rick itself or fall off the rails. Corner. The man in the corner takes the third barrel to the first corner and pushes the barrel to the ricker.