RAF and Commonwealth pilots all wore seat type parachutes which fitted into the standard pilot s bucket seat whilst the other crew members all wore chest fitted removable parachutes The parachute pack clipped on to the harness at the front chest and only needed to be attached immediately before jumping For confined rear turrets the pack was sometimes stored outside the turret in the fuselage the gunner only needing to reach behind him to open the two rear doors of the turret and reach into the fuselage Where the tail gunner stowed his parachute depended on personal preference and to some extent on his physical size The internal dimensions of the Lancaster and its turrets was somewhat wanting in terms of space as when the basic aircraft had been designed as the Manchester the normal flying clothing was limited to perhaps a Sidcot suit and a parachute With the increasing later use of such apparel as Irvin jackets and Mae Wests and other impedimenta the average crew member became a much bulkier figure leading to difficulties in exiting the aircraft in an emergency the dimensions of the escape hatches remaining unchanged This possibly accounts for the higher crew losses for the Lancaster compared to the Halifax which was also much roomier inside