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Genesis of LMR & HPR.

18mm Series


SONIC PAYLOADER is a three cluster 18mm sport rocket. It features very high performance design, easy construction, and high visibility streamer recovery. Wedge fin attach makes fin alignment easy. Modeling clay weight must be added to the nose for stability with some higher power motors. SONIC PAYLOADER is neither sonic nor a payloader. Try 3x18mm A8-3, A8-5, B6-4, B4-6, B6-6, C6-7.
Skill 2
Motors 3x18mm
Recovery Streamer
Diameter 1.62"
Length 23"
Weight 120g
Drag (CD) 0.45e
Altitude 3xC: 1730', 8s
3xD: 2830', 8s
SKU# 1125
Price $29.95
Definition Of Terms

SONIC PAYLOADER Flys on three cluster 18mm with A thru F power! For best results, use a 1/8" diameter launch rod. It does fly fine off standard model rocket launch pads. Its very strong and lightweight construction makes it fly surprisingly high compared to other rocket kit brands. Test it for yourself!

All U.S. Rockets 18mm series kits feature pre-cut plywood fins, heavy duty airframe tubes, strong elastic shock cord, illustrated assembly and flight instructions, and all the high quality parts needed to successfully assemble and fly a high performance model rocket. Launcher, motors, glue, sandpaper, sealer and paint not included.



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