Carbon Fiber Marine Rescue-line Projectile

Product Essence  

A single-use, line-carrying projectile that converts a compressed-air or pyrotechnic launcher into a precision ship-to-ship or shore-to-water rescue tool. The body is filament-wound from epoxy-impregnated PAN-based carbon fiber, cured to 1.55 g cm⁻³—one-fourth of brass—while tolerating transient flame temperatures > 1 000 °C.

Performance Highlights  

- Tensile strength (body): 650 MPa – survives 30 kN setback force without delamination  

- Mass: 190 g (Ø 40 mm × 160 mm) – 40 % lighter than legacy aluminum projectiles, boosting range to 170 m (5 m head-wind)  

- Throat ablation rate: < 0.02 mm s⁻¹ – filament-wound architecture retains ballistic coefficient during 0.8 s in-bore transit  

- Resin char temperature: 350 °C – compatible with short-duration solid propellant flare  

On-Board Applications  

- SOLAS rescue throwers: stores 120 m of Ø 4 mm UHMWPE floating line; delivers 2.2 kN minimum break-load to casualty craft  

- Naval man-overboard (MOB) stations: compatible with 40 mm pneumatic launchers, single-hand reload < 15 s  

- Offshore wind-transfer vessels: used in twin-line system for personnel transfer baskets; carbon-fiber non-magnetic property avoids compass deviation  

- Helicopter winch training: projectile acts as weighted leader for dragging heavier heaving-lines across simulator pool

Harog Technology – Supply-Side Advantages

HARO-CFR-Projectile delivers the longest range-to-mass ratio presently available to marine rescue systems. Harog Technology’s vertically integrated, medically certified carbon-fiber platform offers naval architects a lighter, non-corroding and faster-to-certify solution for next-generation MOB and SOLAS thrower equipment.