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Thursday 30 August 2012
Saturday 25 August 2012
antonov an-225
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Antonov An-225 Mriya
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أنتونوف AN-225 Mriya
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Friday 24 August 2012
antonov An-225 Design Information
ANTONOV
Based on Antonov's earlier An-124, the An-225 has fuselage barrel extensions added fore and aft of the wings, which received root extensions to increase span. Two more Ivchenko Progress D-18T turbofan engines were added to the new wing roots, bringing the total to six, and an increased-capacity landing gear system with 32 wheels was designed. The An-124’s rear cargo door and ramp were removed to save weight, and the empennage was changed from a single vertical stabilizer to a twin tail with an oversized horizontal stabilizer. The twin tail was essential to enable the plane to carry large, heavy external loads that would disturb the aerodynamics of a conventional tail. Unlike the An-124, the An-225 was not intended for tactical airlifting and is not designed for short-field operation.
Based on Antonov's earlier An-124, the An-225 has fuselage barrel extensions added fore and aft of the wings, which received root extensions to increase span. Two more Ivchenko Progress D-18T turbofan engines were added to the new wing roots, bringing the total to six, and an increased-capacity landing gear system with 32 wheels was designed. The An-124’s rear cargo door and ramp were removed to save weight, and the empennage was changed from a single vertical stabilizer to a twin tail with an oversized horizontal stabilizer. The twin tail was essential to enable the plane to carry large, heavy external loads that would disturb the aerodynamics of a conventional tail. Unlike the An-124, the An-225 was not intended for tactical airlifting and is not designed for short-field operation.
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nitially the 225 had a maximum gross weight of 600 tonnes (1,320,000
lb) but the aircraft was modified in 2000–01, at a cost of US$20M, with a
reinforced floor that increased the maximum gross weight to 640 tonnes
(1,410,000 lb).
antonov an-225 mriya
Both the earlier and later takeoff weights establish the An-225 as
the world's heaviest aircraft, being heavier than the double-deck Airbus A380 even though Airbus plans to pass the An-225's maximum landing weight with 591.7 tonnes (1,304,000 lb) for the A380The Hughes H-4 Hercules,
known as the "Spruce Goose", had a greater wingspan and a greater
overall height, but was 20% shorter, and due to the materials used in
its construction, also lighter. In addition, the Hercules only flew
once, making the An-225 the largest aircraft in the world to fly
multiple times. The An-225 is larger than the Airbus A380 airliner, and also bigger than the Antonov An-124, Boeing 747 Large Cargo Freighter, and Lockheed C-5 Galaxy, the nearest equivalent heavy cargo aircraft
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