As a result of the stoppage of the building of life-boats, the Institution’s own machinery shop, in its depot at Boreham Wood, Herts, which overhauled and repaired its engines, and made all the machinery for motor life-boats except the engines, had much less to do, and at the beginning of 1941, It started work on war munitions as well. From the middle of that year until the end of the war it was engaged in making light metal parts for Mosquito aeroplanes. It made and assembled 100,000 parts..