XRAA
is the experimental branch of AHPRA. It was formed to support the growing interest
in non-commercial rocket motors. Currently XRAA members
are working on projects using Solid, Hybrid, and Liquid
technologies.
XRAA is one the
sponsors of the Tripoli Rocketry Assoc. National
Experimental Launch, BALLS, held annually
at the Black Rock Desert in Northern Nevada and also of
local experimental launches in Arizona.