D class
The D class has been the workhorse of the service for 40 years. It is small and highly manoeuvrable, making it ideal for rescues close to shore in fair to moderate conditions. It has a single outboard engine and can be righted manually by the crew following a capsize. The design of the D class has continued to evolve since its introduction. The details given are for the latest version that was introduced in 2003.

Stations using a D class Lifeboat
| Category | Inshore |
|---|---|
| Introduced | 1963 (latest version in 2003) |
| Length | 5m |
| Range | 3 hours at maximum speed |
| Speed | 25 knots |
| Weight | 436kg |
| Crew | 2/3 |
| Construction | Hypalon coated polyester |
| Launch type | Trolley or davit |
