such as ahead of large sea walls. Latterly ARK vehicles were used by the Royal Armoured Corps to undertake the task Armoured vehicle-launched bridge (AVLB) bridge-layer vehicles have replaced AVRE bridging in more recent years, although fascines are still carried for smaller obstacles. AVRE trailers An Armoured Sled was provided for AVRE with droppable sides, allowing further engineering supplies to be dragged by the vehicle. Engineers also used Gutted Carrier based on the universal carrier or its predecessor vehicles, for the same purpose. These were stripped of engine and internals, and dragged using the same linkage used for Conger. Post war, a dedicated AVRE trailer, designated "Trailer, Cargo, 7 1/2 ton, 4 wheeled, Centurion A.V.R.E." provided a cross country load carrying capability behind the AVRE. Related engineering vehicles Related vehicles provided dedicated bridging and mine clearance, becoming the Armoured Ramp Carrier (ARK), Armoured vehicle-launched bridge (AVLB) and Mine flail (Lobster, Crab) vehicles. List vehicles deployed Mark I tank Heavy RE tank variants Bridgelayer, a Mark V tank, with canal lock bridge Mine clearer, a Mark V tank, with mine rollers Light Tank Mk V Bridgelayer, scissors assault bridge Covenanter tank Bridgelayer, deploying a Class 24 scissors bridge Valentine tank Valentine Mk II, deploying a Class 30 scissors bridge FV180 Combat Engineer Tractor (CET) 143 units were supplied, it entered service in 1977, providing earth moving functions. Shielder Vehicle Launched Scatterable Mine System Essentially a modified BAE Systems Land Systems Stormer with the Alliant Techsystems Volcano mine delivery system, 30 have been delivered Challenger variants Titan AVLB, also based on the Challenger 2 chassis, the Titan Armoured Vehicle Launched Bridge, 33 units have been ordered from BAE Land Systems Terrier CET Currently in development to replace the FV180. Substantial use of Commercial off-the-shelf parts is part of the design of the vehicle, including a Caterpillar drive train (C18 diesel engine and an X300 series automatic transmission) and excavator. It also uses the alloy road wheels from the BAE Systems Combat Vehicle 90 programme. The Terrier is armoured using steel rather than the aluminium alloy of its predecessor See also Hobart's Funnies Military engineering vehicle Notes Comments References References Crusader and Covenanter Cruiser Tanks 1939–45, David Fletcher, Osprey Publishing, The Encyclopedia of Weapons of World War Two, Editor Chris Bishop, Metro Books. External links Remuseum.org.uk Army.mod.uk Jdw.janes.com Army.mod.uk Tanks of the United Kingdom Military engineering vehicles of the United Kingdom