Model Rocket Building Blog

Model Rocket Building Posts

Sport Rocketry / Construction / Fins / Fillets

    Tools! Part 3 (2012-11-17)
    I use these so often now, I don't know how I got by without them before. Q-Tips (or cotton swabs) are great for picking up excess glue. At the top of a fin, where the leading edge meets the body ... [Read More]

    Fin Glue Rivets? TIP (2019-07-30)
    Here's one way we used to reinforce the fin root edge joints - FIN GLUE RIVETS! This illustration is from the 1977 FSI catalog. Punch holes down the fin position pencil line with a needle. When glue ... [Read More]

    Smooth Those Fillets! (2020-02-12)
    A little research on JimZs surprised me. I always thought there were smoothed glue fillets in model rocket construction.  Here's how fillets have changed over the years: The original Estes Mark ... [Read More]