Harpoon 1:4,2

Take your rocketry to the next level with the Harpoon 1:4,2 - a stunning scale model designed for H-class power and show-stopping flights!

Designer

Andreas Block

Stage Count

1

Engines

Aerotech H180W
Image

Apogee

508 m

Total Flight Time

92.3 s

Rocket Length

1152 mm

Max. Diameter

81 mm

Download Harpoon 1:4,2 Download
SpaceCAD model rocket
design file.
The Harpoon 1:4,2, designed by Andreas Block, is a bold tribute to classic scale rocketry - perfect for advanced builders ready to step up to mid-power excitement. With its imposing 45-inch length and 3.2-inch diameter, this single-stage scale model commands attention both on the pad and in flight. The Harpoon’s clean, military-inspired lines and proportional fins capture the essence of the legendary anti-ship missile, making it a standout choice for both sport launches and display. Crafted for H-class motors (like the Aerotech H180W), this kit delivers thrilling high-altitude flights, topping out around 1,600 feet. Builders will appreciate robust construction techniques - think precision-cut fins, sturdy airframe tubing, and a roomy payload bay for custom avionics or altimeters. Recovery is handled by a generously sized parachute, ensuring a gentle touchdown and safe return for your prized build. The Harpoon 1:4,2 is ideal for experienced hobbyists looking for a challenging project and a rocket that turns heads at NAR launches or club meets. Whether you’re chasing altitude, perfecting your finishing skills, or seeking a scale showpiece, the Harpoon 1:4,2 delivers reliability, realism, and all the thrill of high-power rocketry. Add it to your fleet and launch with confidence!
Flight Results
Apogee (hmax) 508 m at 8.5 s
Velocity (vmax) 137 m/s at 1.1 s
Acceleration (amax) 153 m/s² at 0.4 s

Rocket Weight
Lift-Off 1490.4 g
Burnout 1369.5 g
Propellant Weight 121.0 g

Stability
Center of Gravity (CG) 607 mm
Center of Pressure (CP) 778 mm
Stability stable

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