The KSR-420S Sounding Rocket is a Korean sounding rocket once used to gather data on ozone concentration over the Korean peninsula. The KSR-420S also carried a highly-specialized device to measure micro gravity. In somewhat less peaceful times, the KSR-420S could be modified to carry a 200kg destructive payload over a considerable distance.

This sport-scale model of the KSR-420S flies on a cluster of three 18mm model rocket motors As a Skill Level 2 kit, the KSR-420S is easy to build. This makes it a great choice for rocketeers new to clustering.

• Decals: Self‑Stick
• Diameter (in): 1.6370 (BT‑60)
• Fin Material: Balsa
• Fin Span (in): 6.2100
• Length (in): 27.4750
• Manufacturer: Rocketarium
• Recommended Motors: 3xA8‑3, 3xB4‑4, 3xC6‑5
• Recovery: Parachute
• Skill Level: 2
• Style: Cluster, Scale
• Weight (oz): 3.7000