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The Space Shuttle
Overall, the shuttle program is also known as the Space Transportation
Solid Rocket Boosters(SRB)
Two solid rocket boosters are the main source of
thrust that lift the shuttle off the pad. The boosters carry the entire
weight of the orbiter and the extra fuel tank. The solid rocket boosters
are ignited after the space shuttle's main engine's thrust level is verified.
The SRB's(solid rocket boosters) are the largest solid propellant motors
ever made, and also the first ones designed to be reused.
Extra Fuel Tank
The extra fuel tank is used to fuel the shuttle's three main engines
during liftoff. Later, the extra fuel tank is jettisoned and breaks up
in the earth's atmosphere. When loaded, the extra fuel tank is the heaviest
part of the shuttle. It has three main parts, the forward liquid oxygen
tank, an intertank, and the aft liquid hydrogen tank. The fuel tank is
attached in three places, one forward and two aft. There are some cords
that carry electrical power and signals, fluids and gases between the fuel
tank and the orbiter. These cords are also used to send electrical signals
and controls between the orbiter and the solid rocket boosters. This part
of the assembly is not recovered.
The orbiter is made primarily of aluminum. It has nine major sections:
the forward fuselage, wings, midfuselage, aft fuselage, payload bay doors,
forward reaction control system,vertical tail, orbital maneuvering system
and reaction control system pods, and also the body flap. Most of these
areas or protected by reusable surface insulation. The crew compartment
is in the forward fuselage.
Next, see space sattelites!
**FOR MORE INFORMATION, SEE THE LINK
AT THE TOP OF THE PAGE 'NASA SPACEFLIGHT'**
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