Step Eight Once again, the result had to be lightweight and robust, not only to support the barrel but to survive the rigours of transportation and manhandling. As shown below, the stepped shape of each "bracket" was built from hardboard supported by wooden noggins, all of which was glued and screwed together. Small counter-sunk brass screws were favoured so that, with filler, they can be suitably disguised.
The Ironwork
Step Eleven The next task is to recreate the ironwork for the gun carriage, such as the rings for the rope tackle. Shaped brackets for the barrel trunnions, known as "capsquares", needed to be fabricated, as did large faux bolts to replicate those that would have held the carriage together.
Capsquares The barrel trunnions are held in place on the gun carriage by two arched iron capsquares. One end of each capsquare is fastened over an iron wedge known as a capsquare fore-lock and held in place by a capsquare key passing through the wedge. At the other end, each capsquare is hinged about a capsquare eyebolt so that, with the key removed, the capsquare can be lifted up and rotated to release the trunnion. In this way the cannon barrel can be removed from the carriage.The two capsquares were cut to create the arched shape from blocks of wood measuring 260 mm long x 50 mm wide x 50 mm high. The radius of the arch is 35 mm, and the resulting capsquare is 10 mm thick.
The u-shaped capsquare eyebolts were cut from 12 mm plywood, sanded to a round profile and glued onto each gun carriage bracket. The ends of the eyebolts were cut to form "pins" used to locate them in pre-drilled holes to the rear of each trunnion.
The capsquare keys and fore-locks were cut from 5.5 mm plywood. The flange on each fore-lock allowed it to be glued into a slot cut to receive it located forward of the trunnion on each gun carriage bracket. A metal chain was connected to each key through a 5 mm Ø hole. Using a threaded eyebolt, the chain and key were fixed to the gun carriage brackets just below the capsquare fore-locks.
The u-shaped capsquare eyebolts were cut from 12 mm plywood, sanded to a round profile and glued onto each gun carriage bracket. The ends of the eyebolts were cut to form "pins" used to locate them in pre-drilled holes to the rear of each trunnion.
The capsquare keys and fore-locks were cut from 5.5 mm plywood. The flange on each fore-lock allowed it to be glued into a slot cut to receive it located forward of the trunnion on each gun carriage bracket. A metal chain was connected to each key through a 5 mm Ø hole. Using a threaded eyebolt, the chain and key were fixed to the gun carriage brackets just below the capsquare fore-locks.
Each piece of the capsquare assembly was primed and painted black to look like iron.
Bolt heads Large nylon cover buttons, spray painted black, were glued in the appropriate position to replicate the bolts that pass through the carriage and hold it together. Smaller diameter buttons were used to replicate the bolts securing the axletrees.Gun tackle ring bolts The simplest solution for the ring bolts was to purchase suitably sized iron ring door pulls from an ironmongery or hardware supplier. Although these pulls have flexible rings (unlike the originals) it was felt this was an acceptable compromise as the baseplates could be more easily screwed to the carriage.
Bolt heads Large nylon cover buttons, spray painted black, were glued in the appropriate position to replicate the bolts that pass through the carriage and hold it together. Smaller diameter buttons were used to replicate the bolts securing the axletrees.
Next... With the barrel and carriage complete, the gun will neded something to "fire". So, in Part Four we will explore "How to:" recreate some of the different projectiles used in the Age of Sail.
Notes:
1. The tester pots were purchased from the "GoodHome" range at B&Q. Other DIY or paint retail outlets may offer the same or even a more accurate colour.
2. The description of a typical gun's rigging was retrieved from the website Model Ship World.
Notes:
1. The tester pots were purchased from the "GoodHome" range at B&Q. Other DIY or paint retail outlets may offer the same or even a more accurate colour.
2. The description of a typical gun's rigging was retrieved from the website Model Ship World.
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