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Understanding Rocket Stability Part 1 – Centre of Gravity

– Introduction – To understand the stability of a model rocket flight it is important to visualize the rocket moving through the air during its upward trajectory. After leaving the launch rod the rocket is essentially a free moving body in the air. The forces of wind, gravity and drag act upon the rocket affecting… Read more »

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Rocket Gliders part 2 – How do they work?

– Introduction – Recall, if you can, the first time you successfully flew a kite. The day was windy or, more probably, there was a steady breeze; your friend helped launch the kite whilst you ran a bit to get it up in the air. Suddenly it felt different, there was a steady pull on… Read more »

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Rocket Gliders part 1

– Introduction – A rocket glider (Figure 1) consists of a rocket motor attached to a glider such that the model climbs in a true rocket (ballistic) flight but converts after burn out to a glider. The burnt out motor stays with the glider. A rocket boost glider or boost glider (Figure 2) behaves in… Read more »

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Mathematics in Motion – Model Rocket Velocity

How fast does a model rocket go? This may be the second most asked question after witnessing a model rocket launch. Unlike a cannon ball shot from a cannon the velocity of the model rocket actually increases after it leaves the launch pad. In this lesson we will determine the maximum velocity of a model… Read more »

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