
The Mary Rose was a carrack in the English Tudor Navy of King Henry VIII that fought in multiple battles during the 16th century before it was sunk in 1545. After its wreck was located in 1971 and raised in 1982 the ship and all the items contained within the partially preserved hull became the focus of intense study. Among these items are the weaponry found, including the canons, but also massive darts that seemed to have been designed for an incendiary payload. Recently [Tod’s Workshop] collaborated with others to test these presumed incendiary darts.
Although fire arrows have been around for a while, seeing what appears to be super-sized versions of these is somewhat unusual, but could make sense in taking out enemy ships of the time. The main questions are how you would even fire them, and how effective they would be. Were the darts thrown by hand from e.g. the crow’s nest, or fired from a canon?
The reproduction darts used are based on the recovered remnants of the original darts, with an incendiary mixture inside a pitch-covered cloth covering. This mixture would be ignited by wooden fuses after a set amount of time, at which point the resulting fire would be basically impossible to put out. Obviously, this also means that if you were to throw one of these darts, it can absolutely not fall onto your own ship.
First tested was throwing the dart by hand, which seems like it would clear the ship. Of course, the three recovered darts were found near a rather special canon that appeared to be both a miscast and angled upwards. Whether that canon was used for launching apparently somewhat experimental darts is hard to say, but it can be tested. Sadly, lacking a full-sized black powder canon a scale model dart was fired using compressed air.
From that scale test it’s clear that at full charge the dart would disintegrate due to the rapid acceleration, but a ‘soft’, or reduced, charge could work against nearby targets. Once the dart lodges itself into the enemy ship’s structure, it would definitely cause severe damage as further tests in the video demonstrate. Having a salvo of these fire darts fired at you from a nearby ship would definitely make for a pretty bad day.



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