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Praga V3S
The Praga V3S is an all-terrain multi-purpose truck, produced between 1953 and 1990 in Czechoslovakia. It was designed for the armed forces and was also exported to 72 countries. Praga produced the truck until 1964, then the Avia company till around 1986, after which the Bratislava company BAZ rolled out these vehicles till 1990. Around 130,000 units were manufactured. The truck was among the best off-road cargo vehicles of its time and the Czechoslovak Army used it for more than half a century.iDNES, Nesmrtelná babička vejtřaska slaví šedesátiny 2. dubna 2013 It was the longest produced Czechoslovak truck. Development For the development till prototype stage of the truck, designers were given only four months. They were in ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praga (company)
Praga is a manufacturing company based in Prague, Czech Republic. The company produced automobiles, karts and planes. The Praga V3S 5-ton truck was used by the Czechoslovak Army for more than half a century. History Praga was founded in 1907 to build motor cars as a venture between entrepreneur František Ringhoffer and the company ''1. českomoravská továrna na stroje'' ("First Bohemian-Moravian Machine Works", later a founding part of the ČKD factories). Ringhoffer only stayed for one year and in 1909 the trade name ''Praga'' ("Prague" in Latin) was adopted. One of its early models was built under licence from the Italian company of Isotta Fraschini. Besides building its own vehicles Praga later also supplied engines and gearboxes for other vehicles, like aircraft and tanks. In 1929 Praga merged with ČKD, one of Czechoslovakia's largest engineering companies. In 1929 ČKD's BD motorcycle was re-branded under the Praga marque. This was an advanced four-stroke single ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine ( gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cars Of The Czech Republic
A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarded as the birth year of the car, when German inventor Carl Benz patented his Benz Patent-Motorwagen. Cars became widely available during the 20th century. One of the first cars affordable by the masses was the 1908 Model T, an American car manufactured by the Ford Motor Company. Cars were rapidly adopted in the US, where they replaced animal-drawn carriages and carts. In Europe and other parts of the world, demand for automobiles did not increase until after World War II. The car is considered an essential part of the developed economy. Cars have controls for driving, parking, passenger comfort, and a variety of lights. Over the decades, additional features and controls have been added to vehicles, making them progressively more complex. These ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Trucks Of Czechoslovakia
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct military uniform. It may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of the military is usually defined as defence of the state and its interests against external armed threats. In broad usage, the terms ''armed forces'' and ''military'' are often treated as synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include both its military and other paramilitary forces. There are various forms of irregular military forces, not belonging to a recognized state; though they share many attributes with regular military forces, they are less often referred to as simply ''military''. A nation's military may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M53/59 Praga
The M53/59 Praga is a Czechoslovak self-propelled anti-aircraft gun developed in the late 1950s. It consists of a heavily modified Praga V3S six-wheel drive truck chassis, armed with a twin 30 mm AA autocannon mounted on the rear for which the vehicle typically carries 900 rounds of ammunition, each gun being gravity fed from distinctive 50 round magazines. The vehicle has an armoured cabin. In Czechoslovakia it was known as Praga PLDvK vz. 53/59 - "Ještěrka" (PLDvK Model 53/59 - "Lizard"). PLDvK stands for ''Protiletadlový dvojkanón = Anti-aircraft twin-cannon.'' The system is optically aimed and can only be used effectively during the day with good weather conditions. The gun can be dismounted and used independently of the vehicle. While mostly obsolete in anti-aircraft role, it can be used effectively as a ground support weapon against unarmored or lightly armored targets, as was shown during the Yugoslav wars. It remains in service with armies of Egypt, Libya, Serbia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Payload
Payload is the object or the entity which is being carried by an aircraft or launch vehicle. Sometimes payload also refers to the carrying capacity of an aircraft or launch vehicle, usually measured in terms of weight. Depending on the nature of the flight or mission, the payload of a vehicle may include cargo, passengers, flight crew, munitions, scientific instruments or experiments, or other equipment. Extra fuel, when optionally carried, is also considered part of the payload. In a commercial context (i.e., an airline or air freight carrier), payload may refer only to revenue-generating cargo or paying passengers. A payload of ordnance carried by a combat aircraft is sometimes alternatively referred to as the aircraft's warload. For a rocket, the payload can be a satellite, space probe, or spacecraft carrying humans, animals, or cargo. For a ballistic missile, the payload is one or more warheads and related systems; their total weight is referred to as the throw-weight. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automotive Battery
An automotive battery or car battery is a rechargeable battery that is used to start a motor vehicle. Its main purpose is to provide an electric current to the electric-powered starting motor, which in turn starts the chemically-powered internal combustion engine that actually propels the vehicle. Once the engine is running, power for the car's electrical systems is still supplied by the battery, with the alternator charging the battery as demands increase or decrease. Battery in modern cars Gasoline and diesel engine Typically, starting uses less than three percent of the battery capacity. For this reason, automotive batteries are designed to deliver maximum current for a short period of time. They are sometimes referred to as "SLI batteries" for this reason, for starting, lighting and ignition. SLI batteries are not designed for deep discharging, and a full discharge can reduce the battery's lifespan. As well as starting the engine, an SLI battery supplies the extra power nece ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brake Specific Fuel Consumption
Brake-specific fuel consumption (BSFC) is a measure of the fuel efficiency of any prime mover that burns fuel and produces rotational, or shaft power. It is typically used for comparing the efficiency of internal combustion engines with a shaft output. It is the rate of fuel consumption divided by the power produced. In traditional units, it measures fuel consumption in pounds per hour divided by the brake horsepower, lb/(hp⋅h); in SI units, this corresponds to the inverse of the units of specific energy, kg/J = s2/m2. It may also be thought of as power- specific fuel consumption, for this reason. BSFC allows the fuel efficiency of different engines to be directly compared. The term "brake" here as in " brake horsepower" refers to a historical method of measuring torque (see Prony brake). The BSFC calculation (in metric units) To calculate BSFC, use the formula : BSFC = \frac where: :'' r '' is the fuel consumption rate in grams per second (g/s) :'' P '' is the power p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Valve Engine
An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located below the combustion chamber in the engine block. Although an overhead camshaft (OHC) engine also has overhead valves, the common usage of the term "overhead valve engine" is limited to engines where the camshaft is located in the engine block. In these traditional OHV engines, the motion of the camshaft is transferred using pushrods (hence the term "pushrod engine") and rocker arms to operate the valves at the top of the engine. Some early intake-over-exhaust engines used a hybrid design combining elements of both side-valves and overhead valves. History Predecessors The first internal combustion engines were based on steam engines and therefore used slide valves. This was the case for the first Otto engine, which was first s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tatra 111
The Tatra 111 was a truck produced in Czechoslovakia by the Tatra company. History The T111 was developed and manufactured during World War II as a heavy truck for use by the Wehrmacht. Production started in 1942 and continued for twenty years, ending in 1962 when it was replaced by the Tatra 138. Despite being built for the Nazi war machine, the vehicle ultimately played an important role after the war ended. The Tatra 111 contributed significantly to the rebuilding effort during the postwar era, mainly in Eastern Europe and the USSR. To its chief designer, however, it brought charges of treason and collaboration with the Nazi regime after the communist takeover of Czechoslovakia and contributed to the imprisonment of Tatra's design guru Hans Ledwinka. Design and technology The design was based on the proven Tatra concept of a backbone tube chassis construction with swing half axles, a modular gearbox and differential assemblies. The main advantages of the central load car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
