Two plans for the 'proposed new self propulsion gears (miniature) never made'.
Eight plans for the 'experimental tank testing machine'.
Four plans for the 'experimental tank boring tables'.
Six plans for the 'experimental tank foundations of cutting machine'.
Seven plans for 'BSRA test launch 1947'.
One plan for the 'wake survey gear'.
Four plans for the 'mobile gantry above the experimental tank'.
One plan for the 'experimental tank steel yard weight tray'.
Three plans for the special model sheet iron hull'.