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| P-15 Termit SS-N-2 Styx | |
|---|---|
 A P-15M missile (SS-N-2c) being unloaded from a former East German Navy Tarantul class missile boat | |
| Type | Anti-ship missile |
| Place of origin | Soviet Union |
| Service history | |
| In service | 1960–present |
| Production history | |
| Manufacturer | MKB Raduga |
| Specifications | |
| Mass | 2,580 kg (5,690 lb) |
| Length | 5.8 m (19 ft) |
| Diameter | 0.76 m (2 ft 6 in) |
| Wingspan | 2.4 m (7 ft 10 in) |
| Warhead | 454 kg (1,001 lb) hollow charge high explosive |
| Engine | Liquid-propellant rocket, solid-propellant rocket booster |
Operational range | 40 kilometres (25 mi) / 80 kilometres (50 mi) |
| Flight altitude | 25 to 100 metres (82 to 328 ft) |
| Maximum speed | Mach 0.95 |
Guidance system | INS, active radar homing, supplemented in some with infrared homing |
Launch platform | naval ships, ground launch |
The P-15 Termit (Russian: П-15 "Термит"; English: termite) is an anti-ship missile developed by the Soviet Union's Raduga design bureau in the 1950s. Its GRAU designation was 4K40, its NATO reporting name was Styx or SS-N-2. China acquired the design in 1958 and created at least four versions: the CSS-N-1 Scrubbrush and CSS-N-2 versions were developed for ship-launched operation, while the CSS-C-2 Silkworm and CSS-C-3 Seersucker were used for coastal defence. Other names for this basic type of missile include: HY-1, SY-1, and FL-1 Flying Dragon (Chinese designations typically differ for export and domestic use, even for otherwise identical equipment), North Korean local produced KN-1 or KN-01, derived from both Silkworm variants and Russian & USSR P-15, Rubezh, P-20 P-22 .
Despite its large size, thousands of P-15s were built and installed on many classes of ships from torpedo boats to destroyers, and coastal batteries and bomber aircraft (Chinese versions).