The Long Brothers will be building a traditionally shaped rocket. This cigar shaped rocket will most likely fly higher because it's very aerodynamic. However, to keep this type of rocket stable, you need fins at the bottom. Getting the size and shape of these fins is not easy.
The Art Attack are throwing caution to the wind and convention out the window. Their rocket will be cone-shaped. The simplicity of this design will make it very stable in flight (think of a badminton birdie) but it will have a large area, making it susceptible to wind drag.
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