Launch It: Patriot Model Rocket

Step 4 Preparing The Motor Casing

First, we need to make sure we have the right measurements. If it isnt 14"x22", then cut it down to make it that size.

Now, lay the posterboard down and measure out two and a half inches. Which is a little bit shorter than the actual motor. Then, cut down the mark in a straight line all the way down the width of the board.