tip to tip

Hey everyone, I'm working on a 3" min diameter rocket, and overall I'm feeling pretty good about the design, but I have a few questions. A screenshot of the rocket is below, and I'll attach the OpenRocket file as well. 1. A friend suggested that I move the fins a bit forward to maybe 1" or...

I'm currently building a high performance 38mm, 56" tall rocket. This project will be my first time fiber glassing an air frame and fiber glassing fins tip to tip. I'm using Public Missiles phenolic tubes for the body. So how many times should I wrap the body with 3oz or 10oz fiberglass weave if...