Now that the C11-5 is kuput I am thinking about trying the new Qjet C12-4. Has anyone tried these new engines? Does anyone know anything about them? BelleVille Hobby has them at a decent price. You have to buy a few to make it worth it given the shipping costs. We would want to get a few extra starters too.
Well I was with the S&T group when they were tested. They seem ok (there were mach diamonds in the exhaust). The only thing that I thought was peculiar was that the motor casing was really soft after firing... but you probably won't get your rocket back soon enough to notice.