That depends on the motor that will power it. typical 40-48 inch rockets are 2 inches diameter.
The width should be 1280 and the height should be 928.
The width of a fin on a rocket can vary widely depending on the rocket's design, purpose, and size. Typically, rocket fins range from a few inches to several feet in width. The width is designed to optimize stability and control during flight while balancing aerodynamic efficiency. In model rockets, fin widths are often proportionate to the rocket's body diameter and overall design specifications.
big rocket
The Big Day - Rocket Power - was created in 2004.
100ft
Its not big at all. If you look at you pinky's nail that's how long it is. The width is the width of your pinky.
The aquarium should at least be by 24 (length) x 12 (width) x 16 (height)
Its not rocket science, develop muscles specially lats , deltoids to get a broader look
You should have an instruction booklet with your machine. That will show you where everything is. This will vary from machine to machine with some being simple and others you should be a rocket scientist to use. The stitch width selector is pretty self explanatory. You use it to select the width of the stitch you want to use in a zig zag stitch.
An easy way to test the general airworthiness of a rocket design is to tie a string around the middle of the rocket so it hangs "balanced". Then swing the rocket around your head in a big circle (kinda like twirling a lasso). If it's aerodynamically stable, the "nose" should always remain pointed "forward" as it goes around in a big circle.
At the very bottom is the nozzle, after that is the fuel. Depending on how big the rocket is and how much fuel it needs determines the size of the chamber
pretty big