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The 3"/70 Mark 26 Gun was a US post war naval anti-aircraft gun. Developed as a joint project with the United Kingdom, which called it the QF 3-inch Mark N1 gun , it had a water-cooled barrel combined with an automatic loader to deliver high rates of fire.
Used in the Mark 34 Gun Weapon System, the Mark 160 Gun Computing System (GCS) contains a gun console computer (GCC), a computer display console (CDC), a magnetic tape recorder-reproducer, a watertight cabinet housing the signal data converter and gun mount microprocessor, a gun mount control panel (GMCP), and a velocimeter.
An attitude and heading reference system (AHRS) consists of sensors on three axes that provide attitude information for aircraft, including roll, pitch, and yaw. These are sometimes referred to as MARG (Magnetic, Angular Rate, and Gravity) [ 1 ] sensors and consist of either solid-state or microelectromechanical systems (MEMS) gyroscopes ...
Pitching moment due to pitch rate - the pitch damping term, this is always negative. Since the tail is operating in the flowfield of the wing, changes in the wing incidence cause changes in the downwash, but there is a delay for the change in wing flowfield to affect the tail lift, this is represented as a moment proportional to the rate of ...
These are based on six degrees of freedom (6 DoF) calculations. 6 DoF modeling accounts for x, y, and z position in space along with the projectiles pitch, yaw, and roll rates. 6 DoF modeling needs such elaborate data input, knowledge of the employed projectiles and expensive data collection and verification methods that it is impractical for ...
These are the JROF with a range of 20.75 km, the JROF-K with a range of 11 km, the "Trnovnik" with 63 HEAT-bomblets and a range of 17.5 km, the "Kuš" with five PPMI-S1 anti-personnel mines or the "Krizhna-R" with four PTMI-D anti-tank mines and a range of 19.45 km. Ukraine has also used the RM-70 to fire Serbian G-2000 rockets with a range of ...
The pitch surface may be a true helicoid or one having a warp to provide a better match of angle of attack to the wake velocity over the blades. A warped helicoid is described by specifying the shape of the radial reference line and the pitch angle in terms of radial distance.
The Kirishima was set aflame, suffered a number of explosions, and was scuttled by her crew. She had been hit by nine 16-inch (410 mm) rounds out of 75 fired (12% hit rate). [3] The wreck of the Kirishima was discovered in 1992 and showed that the entire bow section of the ship was missing. [17]