13mm Gyrojet Bullet - The Gyrojet is a unique type of gun developed in the 1960s in order to stabilize its projectiles. More than crippling bullets. Gyrojets fire small rockets called Microjets that have little recoil and do not require a heavy barrel or chamber to withstand the pressure of the burning gases. The exit velocity of the pipe is very low, but increases to 1,250 feet per second (380 m/s) at 30 feet (9.1 m). The result is a very simple and portable device.
The production period has expired. Today, they are a coveted collectible, with prices for the most common models upwards of $1,000. They rarely get fired. Available bullets can cost over $100 per round.
13mm Gyrojet Bullet
Robert Mainhardt and Art Biehl joined forces to form MBAAssociates, or MBA, to develop rocket projectiles to pierce Biehl's weapons. Produced in .51 caliber, the cartridges are self-propelled rockets with calibers from .49 and 6mm to 20mm.
Gyrojet Rocket Pistol 13mm Rocket
The Gyrojet family of weapons includes a rifle, It was designed to include a carbine and a rifle, and a proposed military-grade rifle and pistol known as the Lancejet.
Only guns and cabinets are built. The US military tested an assault rifle with a magazine-locking insert and old-style cartridges, and they proved to be problematic. Another problem is that the vt port allows wet air into the fuel, which greatly reduces combustion efficiency. It has been suggested that this can be solved by sealing the magazines or ports, but the ports themselves can easily become contaminated.
Gyrojet versions tested were accurate; Difficulty Slow and unreliable. perfect, a 1% failure rate is recommended. Users mention very bad numbers, many times they were wrong the first time, but later they were dismissed. These weaknesses were overcome early on, but the technology did not provide enough advantages for small conventional devices to survive.
Before 1962, the first designer Robert Mainhardt helped to stabilize missiles or bullets. He asked his friend Nick Minchakievich of Pleasanton, California for help. Minchakievich was the first to develop wings that could be retracted after the rear wake proved too dangerous. But retractable wings require advanced machinery during production and tend to be more explosive. Two test calibers with retractable wings are 6mm and 13mm.
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The solution was accelerated due to the possibility of large government contracts, and Minchakievich had to turn bullets or bullets. gyroscopically stabilizing projectiles; Diagonal vted ports are developed during the march. This method is used in all Mainhardt Gyrojet cartridges. Minchakievich warned that rushing the project would make the gun shorter and less reliable.
While working for free at his Livermore Aerospace Plastics Lab, Minchakievich claimed another six months to perfect the precision bullet, making the Gyrojet more popular than the Colt Peacemaker. As artillery and technology were in high demand in Vietnam, Mainhardt and the Air Force declined. Minchakievich ev tried a marketing ploy by listing Ge Roddberry's help in using the pistol in Star Trek. Roddberry likes the Gyrojet, but in the 20th Ctury he wants a gun that just shoots rockets, no matter how advanced it is.
MBA missiles are still being found at Sycamore Creek Way and Happy Valley Road in Pleasanton, where Minchakievich lived and conducted some tests.
Gyrojet Family: Two Gyrojet pistols; Carbine and rifle. In the upper right corner is a box of 13 mm rockets, and at the bottom is a gun drawing book.
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The difference between a conventional rifle and a rocket is that a conventional rifle bullet builds up to a high velocity in the barrel and travels slower than its target. As long as the rocket continues to burn fuel, it continues to fly as fast as an unpowered projectile. The bullet has a lot of kinetic energy at the muzzle. A rocket has a large kinetic energy immediately after burning its fuel. The burn time of a Gyrojet rocket is stated as 1⁄10 of a second by the Bath Reader's Institute book.
The barrel of the gun must be made precisely and withstand very high pressure. This can be an important use case. A Gyrojet rocket shoots through a simple, straight, smooth wall.
Accuracy is increased by rotating the bullet. This is achieved in the bullet by forcing the shot channels around the barrel. The rocket does not have enough initial ergy to allow stability in this way. Gyrojet Spin Stabilization is provided by swinging four small rocket ports instead of firing through a gun barrel. The combustion gases from the barrel are separated from the vt holes in it. The stability of Spin as an aiming method is limited by the accuracy with which the launch tube can be identified and the trajectory of the projectile through the tube. The technique requires the shooter to have a line of sight to his target.
The rocket exits the barrel smoothly and accelerates until it ends up blowing about 60 feet (18 m). It has twice the power of the standard .45 ACP round.
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Test numbers vary greatly, with some reporting a buzzing sound, others just a hissing noise, and testers suggesting top speeds vary from less than Mach 1 to slightly more.
In 1965, the pistol manufacturer claimed 5-mil accuracy (about 17 MOA, or about 4.5 inches at 25 yards).
However, accuracy in later tests was significantly lower. The inconsistency appears to be caused by a later manufacturing defect that blocks part of one of the ejection ports, creating an asymmetric thrust that forces the bullet into the air.
About 1000 "Rocketeer" pistols were produced. Some of the crew are seen in the Vietnam War, as well as the James Bond book and movie You Only Live Twice; He appeared in the Matt Helm films Murderers' Row and The Man from U.N.C.LE. novels, Sex Monster Affair About the same size as a Colt M1911. The Gyrojet weighs only 22 ounces (625 g), which makes it remarkably light because it is made of Zamac, a zinc alloy. The device was fired by sliding a cable forward over the detonator to detonate the gun. The drive shaft is back. The leg hit the bullet in the nose and drove into the pants. When he left the room. This pushes the recall lever forward again. The gun does not have a removable magazine; Ammunition is pushed down from the op "bolt" and held in place quickly by sliding the cover over the gun. Fast reloading is not possible.
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The 2003 tests showed that the speed started at a higher value than was permanent, and then decreased to a speed in the near range not lower than expected (about 100 ft/s (30 m/s)); 30 cm) instead of the calculated 20 ft/s (6.1 m/s). The testers suggested that a (secret) production system was designed to achieve this result.
However, a careful analysis of the published data of these researchers shows that their conclusions are not well calculated. The velocity of the bullet decreases and increases continuously over the flight of the bullet.
Most gyrojets have been sold on the commercial market since the mid-1960s. These were Mark I Gyrojets that fired a .51 caliber rocket and were very expensive to make and buy.
In 1968, the US Firearms Control Act of 1968 created a new legal term, assault weapon. Under the new law, any device that fires an explosive projectile larger than one and a half inches in diameter is considered a weapon of mass destruction and requires a tax and license. The registration process changed several years later, but in the interim, the MBA made the official Gyrojet Mark II, which launched a .49 caliber rocket.
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This version has automatic power and a built-in magazine with a detachable handle. This rifle can be chambered in 6mm caliber to increase the ammunition capacity.
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The Gyrojet principle was also tested for use in survival guns, and a similar idea was explored in a staged launcher. Emergency-survival flare version (A/P25S-5A) survival equipment; shirt, and white flames on the front marks. c. green and the existing red flares have been used as a standard by the USAF for many years. It is called the Gyrojet Flare A/P25S-5A.
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