I found this and remember that I ordered it from an ad in POPULAR MECHANICS about 35 or so years ago. Seems like it had pellets that you inserted and lit with a fuse and thrusted like a jet engine. I think I bolted it to an erector set chassis and it burned a long time and flew down the street! Must have been my first "rocket car"! Maybe it explains my affinity with "little cars on strings" .....GUS!!! Does anyone know if you can still get those "pellets" for these things? Could this be put in a glider? Does anyone else have any of these and what have you done with them?