16-inch armour on citadel and belt amidships, thinning towards the end.
850 feet long—to be afterwards 1,000 feet; 86 feet wide.
Four Torpedo Tubes each side to be well before the Citadel (submerged Tubes) so as not to interfere with machinery space.
Quadruple screws.
Anti-Submarine guns in small single turrets.
A Turtle-backed armoured hull, with light steel uninflammable structure before and abaft the armoured Diamond-shaped Citadel.
Two Conning Towers.
Hydraulic crane each side (very low in height) for lifting boats.
The light central steel hollow mast only for wireless and for ventilation, made of steel ribbon to wind up and down at will.
Jam up the Citadel all that is possible right in centre of Hull, and squeeze the last inch in space so as to lessen amount of 16-inch armour.