Been watching stuff about rocket engines which includes this about hybrid engines where the fuel is solid and the oxidizer is liquid or when the fuel...
I thought it was, well, the same as ever. But tbh, it's no bad thing as I've always quite enjoyed seeing them dicking about in foreign lands. jizzle...
Top job with your visitors Yorick. Seriously mate, that really is an outstanding thing you've done there and also impressed by your mates helping out...