Historically, the four engine design was used to ensure performance and reliability. Aircraft engines back in the early years of aviation were prone to failures and mechanical trouble, and with a four engine airplane, losing 1 engine meant the aircraft retained 3/4 of its performance, versus 1/2 with a two engine design. Additionally, engine technology at the time meant that some aircraft actually required 4 engines in order to have sufficient thrust for takeoff/climb (i.e, B-747).
Today, the only real advantage a four engine aircraft enjoys is performance (as mentioned above), and an increased level of redundancy. Additionally, both of the advantages are rapidly dissolving, as no current commercial transports (other than A380 and 747) employ a four engine design.
From left to right.On a twin engined aircraft, engine one will be on the left wing, engine two on the right. On a four-engined aircraft, engines one and two will be on the left wing, with engine one being the outer engine and engine two being the inner engine. Engine three and four will be on the right wing with engine three being the inner engine and four being the outer.On aircraft which have two engines in-line like the Cessna skymaster. The forward engine is engine one and the aft engine is engine two.
The Airbus A300 is a 266 seat short/medium-range twin-engined aircraft that entered service in 1974. The Airbus A380 is a 853 seat long-range four engined aircraft that entered service in 2007.
I believe it was Igor I. Sikorsky 'Le Grand' to be the worlds first four-engine aircraft.
Explain the advantages of four-stroke engine over two-stroke engine
In general, no. IF an aircraft had a headwind that was faster than the stall speed, it could in theory be motionless in regard to the ground- but the stall speed for most 4 engined aircraft is about 150 knots- that would be a VERY strong headwind. Flying into a hurricane might do it.
Igor Sikorsky designed and flew the first 4-engine aircraft named LeGrand.
it depends on what airplane it is. some have two, some have three, and some have four. there is a six engined airplane, but it is only for cargo.
One word. MONEY.
im looking for the same answer
It all depends on the designer. Most propellers rotate clockwise, probably boiling down to history when props had to be started by hand and a right hand stance was the preferred method. However, technology has advanced, and many aircraft have contra rotating propellers like the P51, TU-95 and AN-70. While, counter rotating propellers, first used on twin engined airplanes, like the P-38, and the gigantic multi engined ME-323, are going to be available on the new A400M - as this reduces yaw - a common problem with "standard" multi prop planes.
It is a four-seat, single-engine, high wing, fixed-wing aircraft.
343 probably refers to the Airbus A340-300. It is a long-range four-engined wide-bodied commercial passenger jet airliner developed by Airbus Industrie. They can carry between 375 and 400 passengers.