Description
90mm T33E7 AP-T Projectile with Windscreen Cutaway
Product Overview
This fired 90mm T33E7 AP-T projectile features a windscreen and cutaway section for examining its construction. AP-T stands for Armor-Piercing Tracer. The sectioned format makes this piece useful for ordnance collections, military history displays, and the study of American tank ammunition.
Construction and Cutaway Features
The original design combined a hardened steel body with a lightweight aluminum windscreen, also called a windshield. This pointed cover improved the projectile’s shape for flight. Beneath it, the steel nose had a shorter curve. The cutaway helps explain the difference between the thin outer cover and the solid armor-piercing body. The base was designed to hold a tracer.
Original Function
This ammunition was designed to defeat armored targets through the force of impact. Its solid steel body penetrated armor using kinetic energy, meaning energy from motion. It had no high-explosive bursting charge. A tracer at the rear produced a visible light during flight, helping crews observe the projectile’s path.
Product History
The T33E7 designation belongs to the development history of the American T33 series of armor-piercing ammunition. A 1958 Army report on experimental tank armor cites a T33E7 test study dated June 19, 1956. Later Army ammunition manuals associate T33E7 with the M318/M318A1 AP-T family. These records place the design within the early Cold War period of American ammunition development.
Documented Applications
Army ammunition data sheets list the M36, M41, and M54 90mm guns for this ammunition family. Their service platforms included the M47 Patton with the M36 gun, 90mm-armed M48 Patton models with the M41 gun, and the M56 Scorpion with the M54 gun.
Equipment History
The M47 entered American service in 1952 after the Korean War created an urgent need for improved tanks. It combined a modified T42 turret with the established M46 hull. The M48 began replacing it in 1953 and introduced a new hull, turret, and suspension. The M56 followed a different path: its light tracked chassis carried an antitank gun for airborne troops, with little protection for the crew.
Weapon-System Background
The M36 was a more powerful development of the M3A1 90mm gun used in the M46 tank. The M41 became the main gun of the original 90mm M48 series. Its mounting supported the gun during recoil and allowed it to move with the turret. The M54 brought 90mm firepower to the smaller M56. Together, these systems show how one ammunition caliber served both armored tanks and light airborne equipment.
History of Use
M47 tanks had a short American service life before many were supplied to allied nations. Foreign operators later used them in combat, including Pakistan in 1965. M48 tanks served American and NATO forces in Europe, then supported Army and Marine Corps operations in Vietnam. The 173rd Airborne Brigade also used M56 Scorpions in Vietnam, chiefly to support infantry. These histories describe the parent weapons; this particular projectile’s unit and firing location have not been provided.
Collector and Display Value
The windscreen cutaway gives viewers a clear way to study a feature that is normally hidden on an intact projectile. Pair it with period ammunition diagrams or a Patton tank display to explain the role of solid steel armor-piercing shot. Its fired condition adds interest for collectors who focus on recovered projectiles and sectioned ordnance.
Approx length 14", Approx width 3", Approx height 3", Approx weight 17lbs.
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