A vauban-type fortress
This type of
geometric-shaped fortresses start to be built during the XVIII
century, after the studies and developments of the french military
architec Sebastian Le Prestre Seigneur de
Vauban
(1633-1707). During the napoleonic wars, all the important
fortified towns still followed these designs (or variations). Thus, in the
Iberian Peninsule were Badajoz, Elvas, San Sebastian, Ciudad-Rodrigo,
Almeida....
All these fortified sites exerted a great influence on
the campaigns of both Imperial and Allied armies, and several
sieges were conducted during the Penisular War. My interest for this topics started after the
reading of the excellent Osprey book
'Fortresses
of the Peninsular War 1808-1814' by Ian Fletcher and Chris
Taylor.
Almeida is hexagon-shaped and in Napoleon
Series
and The
Peninsular War web-sites there is detailed information about the
fortress and, very important, there is indication of the plan and
terrain scale and therefore of the size of the fortifications of the
enclosed town.
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| The built-up-areas (BUA) used in my games are 13x13 cm (5.5x5.5 in) squares, and since Almeida is a middle size town, the resulting fortified recint will contain an only square. As the fortress must be modular (for an easier use), I decided to built a regular hexagon-shaped fortress with 6 identical bastions. |
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draw the trace of the bastion, there are several we sites containing
information about it. I have a combination of several methods, whose
result is the attached scheme which corresponds to a basic bastion. Some related web-sites http://fortress.vif2.ru/biblio/hamilton/ http://www.tdx.cesca.es/TESIS_UPC/AVAILABLE/TDX-1031102-125229/ http://civilwarfortifications.com/index.html http://civilwarfortifications.com/dictionary/dictionary.html http://www.angelfire.com/wy/svenskildbiter/madict.html http://www.vauban.asso.fr/ http://membres.lycos.fr/bravo20/prefortif.htm |
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| The complete fortress has two full bastions, four incomplete ones, a plain curtain piece and a gate piece, according to the attached scheme. Optionally, a breached curtain piece and a ruined bastion can be also built, to allow the simulation of a siege. |
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| The fortress is completed with the external ditch, the glacis and one or more ravelins, whose object is to protect the curtains and the gate. | ||||
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| The total height of the curtain is 6 cm (2.4 in) and the scarp must have a slight slope, so two different pieces are required and must be placed as indicated in the attached scheme. |
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| The bastion trace and the wall outlines are printed and then pasted on 2mm- carboard using white glue. |
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| The bastion trace and the wall outlines are printed and then pasted on 2mm- carboard using white glue. |
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| The foundations are pasted on the slope basis and covered with paper stones. Then the sheet of stones covering the walls are also pasted. |
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| The ashlars of the bastion corners are added following the same system. The superior cordons are made from wood matchsticks |
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| The main gate is based upon the gate of the Fort of the CoNception (portuguese-spanish frontier) |
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| The parapet is finished adding the superior slope |
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| The fortress is made by joining all pieces. |
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