The Offshore Raiding Craft (ORC) is a small, fast boat used by the Royal Marines for troop insertion, and patrols.

[2] The ORC is primarily used when undertaking strategic raiding missions, where speed and covertness is desired.

They were replaced in U.K. service by the upgraded Commando Raiding Craft (CRC).

The CRC has a speed of up to 40 knots, a range of 200 nautical miles and can be underslung from a helicopter or deployed from ships of various sizes.

They incorporate a new configuration with driving position moved from the back to front for better manoeuvrability and employ a more sophisticated electronic suite for communications and navigation.