Tag:defensive_works=ravelin
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 defensive_works = ravelin
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| Description |
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Triangular outwork that protects the innerwork of a fortification 
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| Group: military |
| Used on these elements |
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| Useful combination |
Status: approved
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| Tools for this tag |
A 
ravelin is a detached, triangular outwork that is placed in front of the curtain wall of a fortification.
The letter D in this diagram marks the locations of ravelins in a star fort or bastion fort.
How to map
Place a 
node at the centre or draw an 
area along the outlines of the ravelin and tag it with defensive_works=ravelin.
Tags used in combination
name=*- if the ravelin is named. Do not use the name of the fortification to tag individual bastions.ref=*- for the number of the ravelin, if it has one.heritage=*- if the ravelin has a heritage status. If only the entire fortification has a heritage status, do not use heritage tags for individual ravelins.start_date=*- year of commission