What do you do when you want to build a rocket quickly, for a tight launch deadline, and you don’t have any kits available that fit the bill, and you want something just a little different?

How about a variant on the standby 3FNC and 4FNC designs: 4TNC, using tubes instead of fins? Yup, 4 Tubes and a Nose Cone. We’ll see how she flies: RockSim predicts around 50m on a B4, 120m on a C6.