The lifeboats name Lester[2] has been created by using parts of the surnames of Derek Clifton Lethern and William Foster, both of whom have been long-term supporters and members of the RNLI.

SIMS allows complex tasks such as engine and navigation management to be displayed on a single flat LCD screen, six of which are positioned around the vessel, to allow crew to operate all the systems without moving from their seats.

In the stern section of Lester ON 1287 there is a built in recessed chamber which house a small inflatable daughter boat.

The lifeboat's hull was manufactured at Green Marine[2] in Lymington, Hampshire, and is constructed from Fibre reinforced plastic (FRP).

She attended the car carrier MF The City of Sunderland which had gone aground in the early hours of the morning on the southern edge of Happisburgh Sands.

Assisting with the operation the crew of the lifeboat kept a watchful eye on the situation and stood by while the vessel carried out essential checks to her steering and propulsion systems once she was re-floated.