NEW TANK MAKES STRIKING PICTURE This remarkable pictureof the Petard was taken as it sped into battle on the Western front amidst other armour. Petard is the the unnofficial name of the AVRE. It is the main equipment of the Royal Engineers and is designed to acommodate a crew of Engineers and special explosives for demolition. The main armament is a special mortar mounted in the turret which can hurl a great weight of explosive against concrete Blockhouses and other tough defences