The third part describes the various operations connected with the attack and defense of a bastioned fortification, commencing with the operations preliminary to the siege and investment of the place, and continuing to describe the several processes to be employed in the attack of the place, with the corresponding efforts that should be made during its defense, and ending with an historical account of certain sieges.
This course requires the practical completion of the following:
T Time allowed for its completion.
O Observations.
| Nature of the Work. | T | Subject of the Work. | Scale. | O |
|---|---|---|---|---|
1st Part.—On existing fortifications. | * | |||
| Single Plate, | 20 days, | Complete projection of the front of Cormontaigne withoutcounterguard or cavalier, | 1/1000 | |
Three profiles of the front, | 1/500 | |||
2d Part.—Principles of the Art of Fortification. | ||||
| Plate, No. 1, | 8 “ | 1st Section: Fortifications on level ground.—Principalgraphical constructions of the front on level ground according toparticular data given to each Student | 1/1000 | |
| Plate, No. 2, | 28 “ | Complete projection of the whole of the visible and undergroundparts of the same front, | 1/1000 | |
Three profiles of the front. | 1/500 | |||
| Memoir, | 6 “ | Description of the principles of the Fortification, with adetailed discussion of the dispositions adopted in the particular casetreated by the Students. | ||
| Plate 3, | 20 “ | 2d Section: Fortification on hilly ground.—Drawing of theideal fortress and of its Tête-du-pont, with the interior entrenchments,inundation, sluices, and all necessary details to enable a propercomprehension to be had of the action of the water. | ||
Drawing complete of one of the fronts of the place and itsoutworks, described by a particular programme. Defilement of all theworks of this front and of the masonry of one of its faces, | 1/5000 | |||
| Memoir, | 3 “ | On the situation of the fortification; description of theimaginary fortress, and of the management of the water; explanation ofthe operations of defilement drawn on Plate 3. | ||
Plate 4, (Artillerie.) | 10 “ | Plan and profile of a full revetment of the escarp with itscounterforts. | 1/200 | † |
Plan, profiles, and elevation of a revetment “endécharge.” | 1/200 | |||
Detail of a gallery and small chamber of a mine, of its tampingand mode of firing. | 1/50 | |||
Plate 4, (Engineers.) | 20 “ | Detailed project of one of the parts of the front offortification defiladed in Plate 3. Plans at different height;disposition of the galleries and small chambers of mines required forblowing up the whole of the ground between two listeninggalleries. | 1/250 | ‡ |
| Plate 5, | 10 “ | Sections and elevations of the preceding project. Foundations,coping of vaults, dressing of cut stones, &c., | 1/125 | |
Detail of a small gallery and chamber of a mine, comprised in thedispositions of Plate 4. Tamping and mode of firing. | ||||
| Avant, | 3 “ | Abstractions of measurement of a part of the precedingproject. | ... | |
| Plate 6, | 11 “ | Study of the alterations in the earth of the same part of theprojects, representing the four principal periods of the work, by a planand , with an elevation of the 4th period. | 1/250 | |
| Memoir, | 2 “ | General theory of the removal of earth. Application to aparticular project, | ||
| Register, | 3 “ | Register of the removal of earth as represented inPlate 6. | ||
| Estimate, | 1 “ | Estimate of the part of the project to which the abstraction ofmeasurements has been applied. | ||
3d Section: Projection of the improvement of an existingfortified place. | ||||
| Plate 7, | 30 “ | Complete projection of the project for improving an existingfortified place | 1/1000 | |
| Plate 8, | 6 “ | Details of the most interesting parts of the project, in plans,s, and elevations. | 1/250 | |
| Memoir, | 2 “ | Marginal notes on the defects presented by the existing system,and on the means employed for correcting them. | ||
| Calculation, | 5 “ | Balance of the “deblais” and “remblais” of the project. | ||
3d Part.—Attack and Defense of Places. | * | |||
| Single Plate, | 30 “ | Project of attack of a front of fortification on levelground, | 1/2000 | |
Details of the attack. | ||||
| Journal, | 4 “ | Journal of the siege. Details relating to the composition of thegarrison and of the besieging army; also on the material for theArtillery and Engineers required for the attack and defense. Pen sketchof the most elementary works of attack. | 1/200 |
* Common to Students of Both Services.
† Artillery.
‡ Special to Engineer Students.
RECAPITULATION FOR THE ARTILLERY.