All Rocketry Blogs

Model Rocket Building: 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]

Model Rocket Building: 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]

Model Rocket Building: 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]

Improbable Ventures: How to build a fiberglass rocket, part 11: fin fillets (2020-06-30)

The epic fin-ale to the fin attachment series! (Pun intended.) So far, we’ve attached the fins using the “through the wall” method with epoxy at several points: (1) the fin root, ... [Read More]

Thrifty Rocketeer: Fillet up~ An Update! (2021-01-01)

 The Thrifty Rocketeer blog continues... The topic of how to make a filet and what to use has probably been one of the most discussed topics in all of rocketry. Let's just agree that it's ... [Read More]