REXUS Rocket: how it’s made

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After some umbilical problems happened during yesterday morning,   REXUS 16 launch has just been launched few minutes ago! Congratulations for the teams who took part to the launch and for the entire experiment!

After watching this video, as an aerospace engineering student like most of us, a big question flashed in me: how REXUS rocket engine is made?

REXUS rocket is equipped with an Improved Orion motor, and it supports a payload of 120 kg, and is capable of achieving 110 kilometres of altitude, depending on payload size.

The rocket is designed to be rail launched, and can be supported at most fixed and mobile launch sites.   The system typically uses spin motors and has a total weight of approximately 420 kg, excluding payload.

The Improved Orion motor uses a “bi-phase propellant” system which provides it with around 8600 kg of thrust during the first four seconds of motor burn. The thrust then tails off to approximately 1400 kg of thrust until burnout occurs at around 25 seconds. The fins are normally configured so that the rocket will have a stabilizing spin rate of approximately four cycles per second.

Lots of technical details, pictures are always more clear than words!

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Last thing but not the least, also KTH’s ISAAC team is going to launch their FFU, stay tuned and watch its launch tomorrow!

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