A branch of the Royal National Lifeboat Institution (RNLI) is appealing for help raising £150,000 for a new lifeboat.
The all-weather Tyne class lifeboat in Workington, Cumbria, needs replacing next year at a cost of £2m.
The new Shannon-class vessel is powered by water jets rather than propellers and is 50% faster, the RNLI said.
Workington coxswain John Stobbart said it would let them reach people "a lot more quickly and further off shore".
The charity has a bequest of £1m from the late Dorothy May White and £500,000 from the Sir John Fisher Foundation.
"However, we still need to raise the remaining £150,000 to turn the lifesaving vessel into a reality," Mr Stobbart said.