Binoculars or field glasses are two refracting telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes when viewing distant objects. Most binoculars are sized to be held using both hands, although sizes vary widely from opera glasses to large pedestal-mounted military models.
The Leclerc tank is a main battle tank (MBT) built by Nexter Systems of France. It was named in honor of General Philippe Leclerc de Hauteclocque, who led the French element of the drive towards Paris while in command of the Free French 2nd Armoured Division in World War II. The designation "AMX-56" – while very popular – is incorrect.
The Gundlach Periscope, usually known under its British designation as Vickers Tank Periscope MK.IV, was a revolutionary invention by Polish engineer Rudolf Gundlach, manufactured for Polish 7TP tanks from the end of 1935 and patented in 1936 as the Gundlach Peryskop obrotowy. It was the first device to allow the tank commander to have a 360-degree view from his turret with a single periscope. By rotating the periscope and allowing the tank commander to look backwards through the second eyepiece, he no longer had to change position to look behind the turret. Early tanks had small turrets and fixed seating, without an independently rotating cupola, and so the commander wasn't easily able to move himself to another rear-facing periscope.
Rudolf Gundlach (1892–1957) was a Polish military engineer, inventor and tank designer. He headed the design division of the Armored Weapons Technical Research Bureau. He held the military rank of major in the Corps of Engineers of the Polish Army.
A telescopic sight, commonly called a scope informally, is an optical sighting device based on a refracting telescope. It is equipped with some form of a referencing pattern – known as a reticle – mounted in a focally appropriate position in its optical system to provide an accurate point of aim. Telescopic sights are used with all types of systems that require magnification in addition to reliable visual aiming, as opposed to non-magnifying iron sights, reflector (reflex) sights, holographic sights or laser sights, and are most commonly found on long-barrel firearms, particularly rifles, usually via a scope mount. The optical components may be combined with optoelectronics to form a digital night scope or a "smart scope".
The FV 214 Conqueror, also known as "Tank, Heavy No. 1, 120 mm Gun, Conqueror" was a British heavy tank of the post-World War II era. It was developed as a response to the Soviet IS-3 heavy tanks and the Conqueror's main armament, a L11 120 mm gun, was larger than the 20-pounder (83.4 mm) gun carried by its peer, the Centurion. The Conqueror's role was to provide long range anti-tank support for the Centurion. Conquerors were issued at nine for each regiment in Germany, usually grouped in three tank troops. In the British Army both the Conqueror and the Centurion were replaced by the Chieftain.
The AMX-32 was a French main battle tank developed by AMX and APX during the late 1970s as an export tank to fit in a specific market niche of nations with smaller defence budgets. While six prototypes were built, it failed to garner interest for foreign sales.
The SK-105 Kürassier is an Austrian light tank armed with a rifled 105 mm gun in an oscillating turret. It is estimated that over 700 have been produced.
The Type 61 tank is a main battle tank developed and used by the Japan Ground Self-Defense Force (JGSDF), built by Mitsubishi Heavy Industries.
The Norinco Type 63 is a Chinese amphibious light tank. First fielded in 1963, it is in many ways similar to the earlier Soviet PT-76. However, contrary to the popular belief, it does have some essential differences from the PT-76 in the vehicle's waterjet propulsion system, etc. It is also known under its industrial designation, the WZ-211. Type 63 is being replaced by Type 63A.
Lahko kolesno oklepno vozilo Valuk is an improved version of Pandur 6X6 APC, manufactured under a license manufacturing agreement with the Austrian company, Steyr Daimler Puch Spezialfahrzeug AG & Co KG, by Sistemska Tehnika of Slovenia for the Slovenian Army.
The Dozor-B is a four-wheeled Ukrainian armored car.
A photonics mast is a sensor on a submarine which functions similarly to a periscope without requiring a periscope tube, thus freeing design space during construction and limiting risks of water leakage in the event of damage. A photonics mast replaces the mechanical, line-of-sight viewing system with digital equipment, similar to a digital camera array, and it has fewer locational and dimensional constraints than a traditional periscope.
The LT vz. 34, formally designated as Lehký tank vzor 34 was a Czechoslovak-designed light tank used mainly by Slovakia during World War II. Its suspension was based on that of the Carden-Loyd tankette, of which the Czechs had purchased three, plus a manufacturing license, in 1930. Dissatisfied with the prototypes of the Tančík vz. 33 tankette, the Czech Army decided that it would be easier to design a light tank from scratch rather than modify a tankette's chassis to carry a fully rotating armored turret. 50 were built, the last of which was delivered during 1936, of which the Germans captured 22 - including the prototype, when they occupied Bohemia-Moravia in March 1939, but they promptly scrapped them. The Slovaks seized the remaining 27 when they declared independence from Czechoslovakia at the same time. In Slovak service it only saw combat during the Slovak National Uprising.
The OF-40 is an Italian main battle tank developed as a joint venture between OTO Melara and Fiat, and intended primarily for export sales. OTO Melara would develop and produce the hulls, and automotive components would be provided by Fiat. Initial design work was started by OTO Melara in 1977, with the first prototypes ready by 1980.
The T-54 and T-55 combines a high-velocity gun with a highly mobile chassis, low silhouette, and exceptional long-range endurance. The T-54/55 tanks have been produced in greater quantity than any other tank in the world. Seven main production models have been widely used throughout the Warsaw Pact and in many other countries. The T-54/55 series has been manufactured in Czechoslovakia and Poland as well as in China where it is known as Type 59. More than a dozen countries have produced upgraded T-55 variants with similar capabilities in protection and lethality. The tank featured many innovations, many of these being in the fire controls of the T-54 and the T-55.
The Torpedo Data Computer (TDC) was an early electromechanical analog computer used for torpedo fire-control on American submarines during World War II. Britain, Germany, and Japan also developed automated torpedo fire control equipment, but none were as advanced as the US Navy's TDC, as it was able to automatically track the target rather than simply offering an instantaneous firing solution. This unique capability of the TDC set the standard for submarine torpedo fire control during World War II.
The FV4601 MBT-80 was a British experimental third-generation main battle tank, designed in the late 1970s to replace the Chieftain tank. It was eventually cancelled in favour of the Challenger 1, itself an evolution of the Chieftain design.
The Vickers MBT Mk. 4 later known as the Vickers Valiant was a main battle tank developed as a private venture by British company Vickers for export. Its development began in 1976 and ended in January 1984. Although the Valiant did not enter production, its development provided valuable experience in the production of an aluminium-hulled, Chobham-armoured tank in the 40 tonnes weight range. A further development of its turret was later used for the Vickers Mk. 7 MBT.
The Vickers MBT Mk. 3 is a main battle tank by Vickers, a development of the Vickers MBT, and introduced in 1975 for the export market. It was the last of the Vickers tanks to see sales in numbers abroad.
Australian Light Horse troops using a periscope rifle, Gallipoli, 1915. Photograph by Ernest Brooks.
An Auxiliary Periscope for Submarines from The Electrical Experimenter, Vol. IV, No. 38., 1916
A team of German artillery observers using periscope binoculars, 1943
