A projecting work consisting of two flanks and two faces terminating in a salient angle, it permitted defensive fire in front of neighbouring bastions and along the curtain connecting them. The faces of the bastion are the parts exposed to being enfiladed by ricochet batteries, and also to being battered in breach.īASTION, COMPOSED, is where two sides of the interior polygon are very unequal, which makes the gorges also unequal.īASTION, CUT, is that which, instead of a point, has a re-entering angle.īASTION, DEFORMED, is when the irregularity of the lines and angles puts the bastion out of shape as, when it wants a demi-gorge, one side of the interior polygon being too short.īASTION, DEMI, is that which has only one face and one flank, cut off by the capital,-like the extremities of horn- and crown-works.īASTION, DOUBLE, is that which is raised on the plane of another bastion.īASTION, FLAT, is a bastion built in the middle of the curtain, when it is too long to be defended by the bastions at its extremes.īASTIONS, HOLLOW, are those surrounded only with a rampart and parapet, having the space within unoccupied where the ground is so low that no retrenchment can be made in the centre in the event of the rampart being taken.īASTION, REGULAR, is that which has true proportion of faces, flanks, and gorges.īASTIONS, SOLID, are those which have the void space within them filled entirely, and raised of an equal height with the rampart. bastion, element of fortification that remained dominant for about 300 years before becoming obsolete in the 19th century. They are protected by galleries of mines, and by demi-lunes and lunettes outside the ditch, and by palisades, if the ditch is inundated. bastion bastion projecting part of a rampart or other fortification bastion a stronghold into which people could go for shelter during a battle bastion a. Bastions contain, sheltered by their parapets, marksmen, artillery, platform, and guards. Two bastions are connected by means of a curtain, which is screened by the angle made by the prolongation of the corresponding faces of two bastions, and flanked by the line of defense. Military Dictionary Military Dictionary and Gazetteer □Ī work consisting of two faces and two flanks, all the angles being salient.
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