Jellicoe and Beatty, as well as other senior officers, gave an impression that the loss of the battlecruisers was caused by weak armour, despite reports by two committees and earlier statements by Jellicoe and other senior officers that Cordite and its management were to blame. This led to calls for armour to be increased, and an additional was placed over the relatively thin decks above magazines. To compensate for the increase in weight, ships had to carry correspondingly less fuel, water and other supplies. Whether or not thin deck armour was a potential weakness of British ships, the battle provided no evidence that it was the case. At least amongst the surviving ships, no enemy shell was found to have penetrated deck armour anywhere. The design of the new battlecruiser (which had started building at the time of the battle) was altered to give her of additional armour.