text: Grand Slam handling A Ramsome Rapier crane at the A&AEE could lift the Grand Slam when on a concrete base and the Type H trolley was acceptable when limited to  with its tyres at 80 PSI. The bomb cradle on the trolley was tilted up at the front to protect the bomb bay roof from damage by the tailfins of the bomb. The bomb was raised into the bomb bay by a crew of six men, who took 35 minutes. Templates were manufactured to help align the bomb in the bay, the front one proving unnecessary and being dispensed with; the rear template was hung from the bomb bay roof. The inside of the Special bomb bay was faired with quick-release panels from the bomb door hinges to the underneath of the fuselage floor to protect pipe-work.
  The top of the bomb bay had metal plates installed, the forward bulkhead was faired to the contour of the nose of the Grand Slam and another fairing was fitted to the rearward bulkhead to smooth the airflow as the bomb exited the bay. The usual bomb bay switches were replaced by a master switch; a release cable and lever were fitted to the left-hand side of the cockpit for emergencies. The bomb was connected to the bay with a sprung dowel sticking out of the bomb bay roof and a Vickers release unit with metal links, which could be adjusted from within the aeroplane, wrapped around the bomb and released electrically or manually. Fuzing devices in the bomb bay roof worked for the Tallboy as well as the Grand Slam. The new bomb had a two-piece metal skirt between the bomb proper and the tail unit, whose front edge jutted out from the casing of the bomb. As the bomb fell, the slipstream could detach the tail unit of the bomb and the A&AEE advised that it be redesigned.