tenaille

It was sometimes also called bastion with a tenaille.

To fortify the angle of a place that is too acute, they cut the point, and place two demi-bastions, which make a tenaille, or re-entry angle.

To protect the postern Vauban conceived the plan of establishing a work between the flanks and before the curtain, and to which he gave the name of tenaille.

The tenaille could be crossed along its centre by a great postern leading under its terra-plain; and when the ditch was filled with water, this vaulted passage served as a harbour for boats.

His front as applied to Alessandria, contains many elaborations of the bastion trace, with, in particular, masked flanks in the tenaille, which served as extra flanks of the bastions.

In fact, with its double tenaille, numerous embrasures in the bastions and high walls surrounded by a moat, the castle was admirably suited to the topography of the site and the strategic and defensive functions.

The first trace that Vauban adopted for the tenaille after inventing it, was to draw it like a small front placed parallel to the curtain, and with its two small flanks parallel to those of the enceinte.

Another program that he worked for was 'A Treasure Hunt', presented by Isabel Tenaille, which was traveling by helicopter somewhere in the world by following the instructions a contestant who was in the studio in Madrid.

In a letter to John Bradshaw, President of the Council of State in London, Oliver Cromwell writing from Dublin on 16 September 1649 described one such tenaille that played a significant part during the storming of Drogheda.

The intricacies of trace by which Vauban and Cormontaigne sought to minimize the power of the attack, are abandoned in favour of a simple tenaille plan so arranged that the defenders can bring an overwhelming fire to bear on the works of the besieger.

By this plan there is formed in rear of the tenaille a kind of place of arms, of great advantage for debouching into the ditch: the parapet of the tenaille was made 5 metres (16 feet) thick.

Suitably planned and organized, the tenaille possesses many important advantages, but in whatever manner it is designed, the tenaille will mask the fires of the flanks, and the ditches in front of it will give some cover to attackers.