As a kid, for a while I was into model rockets.

Kind of.

There are different model rocket engine sizes and I think engines like “D” were the big ones.

Designed for big rockets. But in my mind, for fun rockets.

I became interested in trying to shove D engines into tiny A rocket bodies. This took duct tape and an acceptance of the fact that you will never see the rocket again after you launch it.

But this was the only way. The fun way.