The ability of flying
:Engine generates the ability to fly the plane. Planes uses three main types of engines
reciprocating or piston engines-
Jet engines-
rocket engines-
reciprocating engines are the most weight and least productive of the ability of these types, while the rocket engine is the most productive capacity
:Comparison of aircraft reciprocating engines and jet engine
Reciprocating or piston engines-
uses more than other types of aircraft engines.Most small aircraft and many of the large aircraft fitted with reciprocating engines.For these aircraft there is one propeller or more. the engine runs aircraft fan, the power generated to push the plane in the air
piston engines in the plane are similar to his work in the car. In both cases, the engine burning a mixture of gasoline and air inside the cylinder, causing an explosion which causes pushing the piston up and down inside the cylinder to manages crankshaft, , which makes the plane fan rotate. In the car the crankshaft push other parts eventually lead to the rotation of the wheels. aircraft engines uses a device called Amonat instead of batteries to make a spark. most of the aircraft engine is cooled by air instead of water
the ability of reciprocating engine Measured by unit of kW , capacity of most aircraft engines is ranging between 22 kW for small & single engine aircraft and 300 kW for two large engines aircraft . the most productive of the reciprocating engines used to drive the capacity of aircraft was the engine is installed on the giant American bomber B-36, which was generating 2722 kW, in the late forties of the twentieth century. No longer large aircraft use of such reciprocating engines with a high capacity. Such aircraft are pushed by automatically jet engines lighter than reciprocating engines, although they generate a lot power to them
Reciprocating engines still used in most light aircraft which works better than the jet engines at low speed
:Jet engines
jet engines enable large aircraft to travel long distances at high speeds. But jet engines must also have that work satisfactorily even at low speeds used for automatic pushing for safety landing
:There are three types of jet engines, are
turbo-jet engine -
turbine fan engine -
Turboprop and turbo shaft -
jet engine turbine is the first success engine , some aircraft is still used it till now . turbo jet engine pulls air from front of it to burn it after mixing with fuel. this process generates a powerful exhaust gas which blown through the engine with high speed, causing the engine to move forward at high speed is equal. Before exhaust is leaving the engine nozzle , it runs a turbine disk to run various turbine engine parts
all modern airliners are nearly provided turbine fan engines which are similar to turbo-jet engines with some improvements. The turbofan works in most cases, like turbine jet engine, but it has a front fan pulls a large amount of air. Moving only a portion of this air for combustion with the fuel to generate exhaust puffs , the rest of air joins the exhaust gas when they came out together from the barrel of the engine. the exhaust is becoming more capable and less heat than the exhaust of turbine jet engine .. turbofan engine consumes less fuel than jet turbine engine, produces less noise, and it works better at slow speeds turbo-propeller engine uses to push the front. Gathering the surpassing power of the engine turbo-jet and the best ability of fans on flying at low speeds
There are other types of jet engines, but they are rarely used to push the aircraft. compressor Turbine jet is the simplest types of jet engines and most of the productive capacity. But it only works at high speeds only. The compressor jet engine is used mainly to push aircraft missiles (the drones), as well as weapons. Pulse detonation engine is also simplified. However, it consumes a great quantity of fuel and noisy which makes it not fit to push the aircraft
Rocket engine. Rocket engine works in a similar manner to the jet engine work , except that it does not need to supply oxygen from the outside air. it improves missile engine performance at very high speeds, but it also consumes a high degree of fuel raising the cost of operation. also the possibility of missile engine explosion at any moment is a reason not to use it for the automatic push for the passengers aircraft becuase of the intensity of gravity
Although its Disadvantages , the rocket engine is sometimes used to push for the aircraft. There are a few of the jet or turboprop engines that use a small rocket engine to help it take off at high speed if the cargo is large or taking off from a short runway. Rocket engines fixed either the body of the aircraft or the bottom of their wings. Rocket motors have been used to push for many of the automated aircraft test, ultrasound, such as the Bell X-plane 1, and the American plane X-15
