Been doing all kinds of boost gliders (mostly small) for a while and MJD is right they are the most fun. Here is a pic of 41.5's rocket car. He was 6 when he designed and built it.
We launched it this past Sunday with two Bs and one C and then two Cs. Too much fun for one neighborhood.[sm=shades_smile.gif]
If I could get past the pain I would post the vids.[&:]