I agree with cjl and Rock_it. It probably doesn't need it if it isn't going to go past 5k really quickly (pushing mach) BUT.....it won't hurt to have one and it could stop that one fluke nosecone pop when you prove me wrong about the first statement!
Though most of my rockets tend to be fast movers I still put in vents. The most surefire way to prevent a nosecone from popping off though is to use shear pins.
Originally posted by smurf ...Though most of my rockets tend to be fast movers I still put in vents. The most surefire way to prevent a nosecone from popping off though is to use shear pins...