| Class overview | |
|---|---|
| Builders | Austin & Pickersgill |
| Operators | Pakistan National Shipping Corporation |
| Preceded by | SD14 |
| Built | 1980–1981 |
| Completed | 3 |
| Active | 0 |
| Lost | 1 |
| Scrapped | 2 |
| General characteristics | |
| Type | Cargo ship |
| Tonnage | 11,960 GRT, 7,900 NRT |
| Length |
|
| Beam | 22.86 m (75.0 ft) |
| Draft | 9.45 m (31.0 ft) |
| Depth | 13.11 m (43.0 ft) |
| Installed power | Sulzer RND68M diesel engine 8,385 kW (11,244 hp) |
| Propulsion | Single screw |
| Speed | 15.75 knots (29.17 km/h; 18.12 mph) |
| Capacity | 24,345 m3 (859,700 cu ft) |
SD18 (sometimes written SD-18 or SD 18) is the designation of a type of cargo ship, built by Austin & Pickersgill at their yard in Southwick, Sunderland, England in 1980–1981. Only three were built: Murree, Kaghan and Ayubia. The name SD18 stands for "shelter decker, 18,000 tons".