DEFINE CN1 as 8-year-old child can operate
DEFINE CN2 as Flies 3 m up
DEFINE CN3 as Flies at least 5 m from 1 m starting height
DEFINE CN4 as Doesn't injur people
DEFINE CN5 as Doesn't shatter glass windows
DEFINE CN6 as Fuel is easily available in common households
DEFINE FR1 as When shot up vertically, the "rocket" flies at least 3m
DEFINE FR2 as When shot horizontally from an elevation of 1 m, the "rocket" travels at least 5 m
DEFINE FR3 as The maximum kinetic energy at launch is less than 0.5 J
DEFINE FR4 as The "rocket's" impact area is at least 30 mm²
DEFINE DP1 as Kinetic-reaction self-launch