1927, saw James Blackburn at the 'Naval Ordnance Department', followed from 1928-1930, training duties at RN base, Portsmouth (HMS Victory). 1930-1932 saw Blackburn as an 'Executive Officer' on a cruiser called HMS Constance (Reserve Fleet, Portsmouth, Hampshire.) James Alexander Pollard Blac...
Then lo and behold, up came 250 lb bombs and other clutter, the only snag being that this magazine was all WW1 vintage and had probably been there ever since. The bombs were all MK 1 GP. They had a hollow tube through the middle and needed a special arrangement ...