The initial 1909–1910 Naval Programme included two dreadnoughts and a battlecruiser, but was later increased to six dreadnoughts and two battlecruisers as a result of public pressure on the government due to the Anglo-German naval arms race. The original pair of battleships became the "Colossus" class and were improved versions of the preceding battleship, . On 19 November 1908, Rear-Admiral Sir John Jellicoe, the Third Sea Lord and Controller of the Navy, proposed the changes that he would like to make to the "Neptune"s design. He wanted to redistribute the armour from locations not exposed to enemy fire to those that were and to fit 21-inch (533 mm) torpedoes in lieu of the 18-inch (450 mm) weapons used in the earlier ship; the number of spare torpedoes were to be increased as well. Likely prompted by an earlier memo from Admiral Francis Bridgeman, commander-in-chief of the Home Fleet, Jellicoe wanted to eliminate the mainmast and transfer most of the functions of its spotting top to an armoured spotting tower atop the conning tower in the superstructure. The Director of Naval Ordnance (DNO), Rear-Admiral Reginald Bacon, argued that the spotting top in the foremast should be retained. Jellicoe was willing to slightly increase the new design's displacement over "Neptune", but it could not cost any more, which placed major constraints on the Director of Naval Construction (DNC), Sir Philip Watts.