LAUNCH VEHICLES

Payload The payload is what the rocket launches. It may be a satellite, an interplanetary spacecraft or a module of a space station. It is contained in an aerodynamic shroud.The payload can often be quite delicate, and this shroud protects it from the airsteam during the early part of the flight and any heat that is generated from the air. The payload is anchored to the main launch vehicle by strong mounting brackets. These release the payload at the right moment in the flight. The aero-shroud opens and falls away too, leaving the payload alone on its trajectory and its mission. Communications and Control Systems Lauch vehicles or shuttles in launch mode are usually autonomous or controlled by remote commands from their Mission Contol Centre. They therefore need extensive networks of controls systems and communication equipment. Rockets usually have all the main communications and control systems located in one place. This is usually a ring in the upper stage. All the electronics, aerials and instrumentation are fixed to mountings that absorb vibration, which can be very severe during take off. Return

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