Сборник технических текстов для домашнего чтения по английскому языку. Морозова М.А. - 47 стр.

UptoLike

ВУЗ: 

УлГТУ | Ульяновск

Составители: 

Рубрика: 

The unique transport capabilities and the high performance of the aircraft have
been proven in operation. The An-124 has served several nations in the transportation
of economically important cargoes, for example: 90t hydraulic turbines, large size
Liebherr autocranes, American Euclid dump trucks, the fuselage of Tu-204 passenger
transporter, a 109t railway locomotive, and a sea yacht more than 25m long.
One An-124-100 is being converted for use as the first stage in a launch system
for putting satellites into low Earth orbit. The An-124-100 will be used as an airborne
launch platform for the Polyot two-stage launch vehicle. A Russian / Ukranian joint
venture company, Air Launch, is behind the project. Launches are planned to begin in
2005.
STRUCTURE
The aircraft fuselage has a double-deck layout. The cockpit, the relief crew
compartment and the passenger cabin for 88 seats are on the upper deck. The lower
deck is the cargo hold. The flight deck has crew stations arranged in pairs for six
crew, the pilot and co-pilot, two flight engineers, the navigator and communications
officer. The loadmaster's station is located in the lobby deck.
The An-124 aircraft is fitted with a relatively thick (12%) swept back super-
critical wing to give high aerodynamic efficiency and consequently a long flight
range. To decrease the trim drag, the aircraft was designed with a low margin of static
stability.
The construction includes extruded skin panels on the wing, extruded plates for
the centre-section wing panels and monolithic wafer plates for the fuselage panels.
The aircraft structural members are made of composites that make up 1,500m² of the
surface area, giving weight saving of 2,000kg.
High rough-field capacity multi-leg landing gear and the loading equipment
ensure self-sufficient operation of the aircraft on prepared concrete runways and on
poorly equipped unpaved strips at forward airbases close to the areas of operations
where the cargo is needed. The landing gear is self-orienting and incorporates a
kneeling mechanism which allows an adjustable fuselage clearance to assist the load-
ing and unloading of self-propelled equipment. The aircraft has paradropping and
cargo-handling equipment and a 1,000-test point on-board automatic test system as
well as two auxiliary power units equipped with electric generators and turbopumps
for independent operation of the aircraft.
AVIONICS
All systems are quadruple
1
redundant.
2
The on-board equipment provides the
capability to execute airlift and paradrop missions by day and at night, in visual flight
rules and instrument flight rules (VFR and IFR) weather conditions and in prolonged
operation beyond the main basing airfield. The systems include an integrated flight
control and navigation system, communications facilities and paradropping and car-
gohandling equipment. There are 34 computers functioning aboard the aircraft, com-
bined into four main systems: navigation, automatic piloting, remote control and
monitoring.
1
quadruple - учетверенный
2
redundant – избыточный , резервный

Страницы