The Astrobee 350 was initially released in the 1965 Centuri catalog as a true scale design based on a 50 foot tall sounding rocket. Beginning in the 1971 Catalog, the name was changed to the Aerobee 350. The new design incorporated some ribs like the Aerobee-Hi, but the original Catalog Number remained the same. It was an excellent beginner kit, sharing many parts with the later Astro-1. The Astrobee 350 was Centuri #KC-5 and was introduced
with a price of $2.00.
The Semroc Retro-Repro™ Astrobee 350 is based on the early Centuri Astrobee 350 and is updated by replacing the pre-printed fins with precision laser-cut fins. The original balsa nose cone and body tube sizes are used. The original 16" parachute has been reduced in size to reduce drift during recovery. The original rubber shock cord is replaced with an elastic cord for longer life. The original method of attaching
the shock cord has been replaced by a Kevlar® cord for greater reliability. An engine hook is also added for ease of changing the engine.