Rocket Doctor and everybody,

The Bull Pup was selected simply because it looks cool. I'm probably needlessly panicking because it's going to be tough getting about 10 girls to get the rockets together within a 60-90 minute time frame. I just don't want it to be a disaster for my daughter and her troop.

I test fit an engine and it's pretty snug. I stand corrected that the engine holder is flush with the plastic tail cone but the actual engine itself stick out about a half inch.

Taping the engine to the tail would work, masking tape friction fit will work. It's more snug than I thought so it'll probably work as is.

Thanks for putting my mind at ease, fellas. I should have done a test launch before posting. Thanks. - - Batplane