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Luna X 2000
Luna X 2000 is a German unmanned surveillance and reconnaissance aerial vehicle in service with the Bundeswehr (German Army) and produced by EMT Penzberg of Germany. It is intended for close reconnaissance (''over the hill'', up to away), transmitting live video data (visual or infrared) or taking higher resolution still images, but it can also perform other tasks such as particle sampling, ESM/Electronic countermeasures (radio/radar jamming), depending on its payload. The UAV is launched with a simple bungee catapult and then follows a preprogrammed course, that can be altered in flight if necessary. After its mission it automatically lands with the help of a parachute and impact dampers. ''Luna X'' UAVs are in use by German KFOR forces since 2000 and are also used by German troops in Afghanistan. In mid-2009 the German Army ordered another 4 systems with a total of 40 UAVs. The Pakistan Navy signed a contract on the 27 June 2012 with EMT for purchase of LUNA UAV Systems. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parachute
A parachute is a device used to slow the motion of an object through an atmosphere by creating drag or, in a ram-air parachute, aerodynamic lift. A major application is to support people, for recreation or as a safety device for aviators, who can exit from an aircraft at height and descend safely to earth. A parachute is usually made of a light, strong fabric. Early parachutes were made of silk. The most common fabric today is nylon. A parachute's canopy is typically dome-shaped, but some are rectangles, inverted domes, and other shapes. A variety of loads are attached to parachutes, including people, food, equipment, space capsules, and bombs. History Middle Ages In 852, in Córdoba, Spain, the Moorish man Armen Firman attempted unsuccessfully to fly by jumping from a tower while wearing a large cloak. It was recorded that "there was enough air in the folds of his cloak to prevent great injury when he reached the ground." Early Renaissance The earliest evidence f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Military Aircraft Of Germany
An uncrewed vehicle or unmanned vehicle is a vehicle without a person on board. Uncrewed vehicles can either be under telerobotic control—remote controlled or remote guided vehicles—or they can be autonomously controlled—autonomous vehicles—which are capable of sensing their environment and navigating on their own. Types There are different types of uncrewed vehicles: * Remote control vehicle (RC), such as radio-controlled cars or radio-controlled aircraft * Unmanned ground vehicle (UGV), such as the autonomous cars, or unmanned combat vehicles (UCGV) * Unmanned ground and aerial vehicle (UGAV), unmanned vehicle with hybrid locomotion methods * Unmanned aerial vehicle (UAV), unmanned aircraft commonly known as "drone" ** Unmanned combat aerial vehicle (UCAV) **Medium-altitude long-endurance unmanned aerial vehicle (MALE) ** Miniature UAV (SUAV) ** Delivery drone ** Micro air vehicle (MAV) ** Target drone * Autonomous spaceport drone ship * Uncrewed surface vehicle (USV) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Above Mean Sea Level
Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The combination of unit of measurement and the physical quantity (height) is called "metres above mean sea level" in the metric system, while in United States customary and imperial units it would be called "feet above mean sea level". Mean sea levels are affected by climate change and other factors and change over time. For this and other reasons, recorded measurements of elevation above sea level at a reference time in history might differ from the actual elevation of a given location over sea level at a given moment. Uses Metres above sea level is the standard measurement of the elevation or altitude of: * Geographic locations such as towns, mountains and other landmarks. * The top of buildings and other structures. * Flying objects such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller (aircraft)
An aircraft propeller, also called an airscrew,Beaumont, R.A.; ''Aeronautical Engineering'', Odhams, 1942, Chapter 13, "Airscrews". converts rotary motion from an engine or other power source into a swirling slipstream which pushes the propeller forwards or backwards. It comprises a rotating power-driven hub, to which are attached several radial airfoil-section blades such that the whole assembly rotates about a longitudinal axis. The blade pitch may be fixed, manually variable to a few set positions, or of the automatically variable "constant-speed" type. The propeller attaches to the power source's driveshaft either directly or through reduction gearing. Propellers can be made from wood, metal or composite materials. Propellers are most suitable for use at subsonic airspeeds generally below about , although supersonic speeds were achieved in the McDonnell XF-88B experimental propeller-equipped aircraft. Supersonic tip-speeds are used in some aircraft like the Tupolev Tu-95, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two Stroke
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of the crankshaft. A four-stroke engine requires four strokes of the piston to complete a power cycle during two crankshaft revolutions. In a two-stroke engine, the end of the combustion stroke and the beginning of the compression stroke happen simultaneously, with the intake and exhaust (or scavenging) functions occurring at the same time. Two-stroke engines often have a high power-to-weight ratio, power being available in a narrow range of rotational speeds called the power band. Two-stroke engines have fewer moving parts than four-stroke engines. History The first commercial two-stroke engine involving cylinder compression is attributed to Scottish engineer Dugald Clerk, who patented his design in 1881. However, unlike most later two-st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylinder (engine)
In a reciprocating engine, the cylinder is the space in which a piston travels. The inner surface of the cylinder is formed from either a thin metallic liner (also called "sleeve") or a surface coating applied to the engine block. A piston is seated inside each cylinder by several metal piston rings, which also provide seals for compression and the lubricating oil. The piston rings do not actually touch the cylinder walls, instead they ride on a thin layer of lubricating oil. Steam engines The cylinder in a steam engine is made pressure-tight with end covers and a piston; a valve distributes the steam to the ends of the cylinder. Cylinders were cast in cast iron and later in steel. The cylinder casting can include other features such as valve ports and mounting feet. Internal combustion engines The cylinder is the space through which the piston travels, propelled to the energy generated from the combustion of the air/fuel mixture in the combustion chamber. In an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rheinmetall KZO
KZO (''Kleinflugzeug für Zielortung'', German for ''small aircraft for target acquisition'') is an unmanned aerial vehicle (UAV) with stealth characteristics manufactured by Airbus Defence and Space Airborne Solutions GmbH of Germany. Airbus Defence and Space Airborne Solutions GmbH is a joint venture of Airbus Defence and Space and Rheinmetall. A KZO system consists of 10 UAVs and 2 ground units, consisting of one control station, one radio, one launch, one maintenance vehicle with a refuelling facility for the UAVs and one recovery vehicle. The UAV is launched with a booster rocket directly out of its container. Landing is done with a parachute. The KZO's main objective is to locate mobile threats and provide target locations for artillery. KZO replaced the German Army's other main UAV, Drohne CL 289. The Taifun attack drone was a concept of an armed variant fitted with an intelligent millimeter-wave radar seeker that perform search and destroy attacks autonomously. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jane's Information Group
Jane's Information Group, now styled Janes, is a global open-source intelligence company specialising in military, national security, aerospace and transport topics, whose name derives from British author Fred T. Jane. History Jane's Information Group was founded in 1898 by Fred T. Jane, who had begun sketching ships as an enthusiast naval artist while living in Portsmouth. This gradually developed into an encyclopedic knowledge, culminating in the publishing of ''All the World's Fighting Ships'' (1898). The company then gradually branched out into other areas of military expertise. The books and trade magazines published by the company are often considered the ''de facto'' public source of information on warfare and transportation systems. Based in Greater London for most of its existence, the group was owned by the Thomson Corporation, The Woodbridge Company, then IHS Markit, before being acquired by Montagu Private Equity in 2019. Description The company name is officially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yemen
Yemen (; ar, ٱلْيَمَن, al-Yaman), officially the Republic of Yemen,, ) is a country in Western Asia. It is situated on the southern end of the Arabian Peninsula, and borders Saudi Arabia to the Saudi Arabia–Yemen border, north and Oman to the Oman–Yemen border, northeast and shares maritime borders with Eritrea, Djibouti, and Somalia. Yemen is the second-largest Arabs, Arab sovereign state in the peninsula, occupying , with a coastline stretching about . Its constitutionally stated Capital city, capital, and largest city, is Sanaa. As of 2021, Yemen has an estimated population of some 30.4 million. In ancient times, Yemen was the home of the Sabaeans, a trading state that included parts of modern-day Ethiopia and Eritrea. Later in 275 AD, the Himyarite Kingdom was influenced by Judaism. Christianity arrived in the fourth century. Islam spread quickly in the seventh century and Yemenite troops were crucial in the early Islamic conquests. Several Dynasty, dynasties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Houthi
The Houthi movement (; ar, ٱلْحُوثِيُّون ''al-Ḥūthīyūn'' ), officially called Ansar Allah (' ''Partisans of God'' or ''Supporters of God'') and colloquially simply Houthis, is an Islamist political and armed movement that emerged from Saada in North Yemen in the 1990s. The Houthi movement is a predominately Zaidi Shia force, whose leadership is drawn largely from the Houthi tribe. The Houthis have a complex relationship with Yemen's Sunni Muslims; the movement has discriminated against Sunnis, but also recruited and allied with them. Under the leadership of Hussein Badreddin al-Houthi, the group emerged as an opposition to former Yemeni president Ali Abdullah Saleh. They accused him of corruption and criticized him for being backed by Saudi Arabia and the United States. Hussein accused Saleh of seeking to please the U.S. at the expense of the Yemeni people and Yemen's sovereignty. Resisting Saleh's order for his arrest, Hussein was killed in Sa'dah in 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pakistan Navy
ur, ہمارے لیے اللّٰہ کافی ہے اور وہ بہترین کارساز ہے۔ English language, English: Allah is Sufficient for us - and what an excellent (reliable) Trustee (of affairs) is He!(''Quran, Qur'an, Al Imran, 3:173'') , type = Navy , role = , size = 54,100 total active personnel * 35,300 Active duty, active-duty officers and sailors * 5,000 Military reserve force, reserve force * 12,000 Pakistan Marines, Marines * 4,000 Pakistan Maritime Security Agency, Maritime Security Agency * 2,800 :Pakistan Navy civilians, civilian personnel154 ships and 85 aircraft , command_structure = Pakistan Armed Forces , garrison = Naval Headquarters (Pakistan Navy), Naval Headquarters (NHQ), Islamabad, Islamabad Capital Territory, ICT , garrison_label = Garrison , colors = , colors_label = Colours , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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