sentences:  It occurred on 15 November 1928 when the whole of the 17-man crew of the "Mary Stanford" lifeboat were drowned, practically the whole male fishing population of the village of Rye Harbour.About every 10–15 years the RNLI lifeboats around the coast of Britain and Ireland are replaced with new boats as a matter of course.Some stations stay with the same class of boat and others are upgraded to the new improved versions of what they have had, or downgraded to a more suitable class to carry out the work that they have been doing with the old boat.