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Genesis of LMR & HPR.

Large Sport Series 2


RAPIER is a design inspired by Bill Barber and his need for a motor configuration test vehicle with crowd pleasing styling. Rapier is well suited to serious research due to the large payload capacity and good altitude performances. A relatively flat optimum weight matrix allows addition of payload weight with limited altitude penalty and even altitude improvements with higher power motors.

Skill 2
Motors 38mm/2-24mm
Recovery Parachute
Diameter 4.0"
Length 84"
Weight 2.0 LB
Drag (CD) 0.48
SKU# 1102
Price $149.95
Definition Of Terms
RAPIER 38mm motors were INTRODUCED to HPR by U.S. Rockets. 38mm has become the primary motor size of choice in HPR. My how times have changed with reloadables and with hybrids to add to the mix of time tested and convenient expendable solids. RAPIER has kept up to date by supporting ANY length motor. The use of 38mm center and dual 24mm outers allows mixed thrust motors to be used such as 38mm I70-12 and 2 24mm G35-8, or 38mm I220 and 2 G140-12, or 38mm J220-12 and 2 24mm F24-FS!
All U.S. Rockets Large Sport Series 2 kits feature pre-cut plywood fins, heavy duty airframe tubes, recovery harness, illustrated assembly and flight instructions, and all the high quality parts needed to successfully assemble and fly a high performance model rocket. These kits represent the state of the art in technology, performance and cost efficiency. They use USR standards such as "Interchange Mounts"-tm. They feature exceptional quality parts such as aerospace specification airframe tubes, plywood fins, wood or plastic nose cones. Launcher, motors, parachute, glue, sandpaper, sealer and paint not included.

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