The new method of fortification, as practised by Monsieur de Vauban, Engineer General of France with an explication of all terms appertaining to that art / made English.

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Title: The new method of fortification, as practised by Monsieur de Vauban, Engineer General of France with an explication of all terms appertaining to that art / made English.
Author: Vauban, Sébastien Le Prestre de, 1633-1707.
Publication: London :: Printed for Abel Swall ...,; 1691.
Rights/Permissions: To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
Subject terms: Fortification -- Early works to 1800.; Geometry -- Early works to 1800.
Link to this Item: http://name.umdl.umich.edu/A47731.0001.001
Cite this Item: "The new method of fortification, as practised by Monsieur de Vauban, Engineer General of France with an explication of all terms appertaining to that art / made English." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A47731.0001.001. University of Michigan Library Digital Collections. Accessed June 17, 2024.

Pages

Page 43

CHAP. VI. To make a Horn-work before the Curtin.

1. ERect a Perpendicular from 85 to 88 fathoms at the point of the Ravelin or Half-Moon, as QG.

2. Draw from the point G to each side an Arch of 60 fathoms.

3. Take from 114 to 118 fathoms, which is most usual, and resect these Arches in EF, at the Angle of the two Counterscarps DR.

4. Joyn ED together by a streight Line, as also FR and FE.

5. Divide the Lines EF into two equal parts, from the middle of which set down a Perpendicular of 20 Fathoms GH.

6. Draw the Faces ••s for the body of the place; their length is 38 fathoms.

7. For the Complement of the Line of Defence take 21 fathoms 2 feet, which joyn together after the end of the Face and of the Complement, to have the Flanks: Draw the Curtin also.

8. To make the Orillon and the Hollow Tower, go the same way as is set down in Lib. 3. Chap. 2. only that you do not divide the Flank but into two equal parts; Mon∣sieur de Clermont would have allowed to the Orillon of the Square two fifth parts of the Flank.

9. The Base of the Rampart is to contain 8 fathoms; that of the Parapet, 3; that of the Moat, 12; that of the Covert-way, 5; the first and second Banquet are to have the same wideness, as has been mentioned above.

The TABLE.

	Fathoms.	Feet••
The Capital QG	88	00
The Wing DE	118	00
The Perpendicular GH	20	00
The Face EL	38	00
The Flank LN	15	0••

Page 44

The Complement, &c. HN, HM.	21	03
The Curtin MN	38	05
The Line of Defence EM	84	04
The Base of the Rampart	08	00
The Base of the Parapet	03	00
The first Banquet	00	01 1/••
The second Banquet	00	02
The wideness of the Moat	12	00

To make a Ravelin before these Horns.

1. FRom the Angle of the Moat of the Horns, erect a streight Line of 24 fathom for the Capital OP.

2. From the point B draw right Lines toward the Orillon of the two Bastions of the Horns terminating at the Moat, as OQ, OQ.

3. Draw the Base of the Rampart, and the other distan∣ces, as in the working of the Horn-work, only that the Moat ought not to be wider than 8 fathoms, nevertheless it must have its Rounding.

4. The Covert-way, the places of Arms and Glacis are made, as in the body of the place. See the Plate C, c. 4. l. 3.