The
Mary Rose was substantially rebuilt in 1536. The 1536 rebuilding turned a ship of 500 tons into one of 700 tons, and added an entire extra tier of broadside guns to the old
carrack-style structure. By consequence, modern research is based mostly on interpretations of the concrete physical evidence of this version of the
Mary Rose. The construction of the original design from 1509 is less known. The
Mary Rose was built according to the
carrack-style with high "castles" fore and aft with a low waist of open decking in the middle. The hull has
tumblehome: above the waterline, the hull gradually narrows. This makes boarding more difficult and reduces the quantity (and so weight) of heavy structural timbers that carry the higher guns. Modern understanding is that tumblehome does not improve stability by positioning the guns closer to the centreline, though that may have been the belief and intention of her builders. Since only part of the hull has survived, it is not possible to determine many of the basic dimensions with any great accuracy. The , the widest point of the ship roughly above the waterline, was about and the keel about , although the ship's overall length is uncertain. The hull had four levels separated by three
decks. Because the terminology for these was not yet standardised in the 16th century, the terms used here are those that were applied by the
Mary Rose Trust. The
hold lay furthest down in the ship, right above the bottom planking and below the waterline. This is where the
galley was situated and the food was cooked. Directly aft of the galley was the mast step, a rebate in the centre-most timber of the
keelson, right above the
keel, which supported the main mast, and next to it the main
bilge pump. To increase the stability of the ship, the hold was where the
ballast was placed and much of the supplies were kept. Right above the hold was the
orlop, the lowest deck. Like the hold, it was partitioned and was also used as a storage area for everything from food to spare sails. Above the orlop lay the
main deck, which housed the heaviest guns. The side of the hull on the main deck level had seven gunports on each side fitted with heavy lids that would have been watertight when closed. This was also the highest deck that was caulked and waterproof. Along the sides of the main deck there were cabins under the forecastle and aftercastle which have been identified as belonging to the carpenter,
barber-surgeon, pilot and possibly also the master gunner and some of the officers. The castles of the
Mary Rose had additional decks, but since almost nothing of them survives, their design has had to be reconstructed from historical records. Contemporary ships of equal size were consistently listed as having three decks in both castles. Although speculative, this layout is supported by the illustration in the Anthony Roll and the gun inventories. During the early stages of excavation of the wreck, it was erroneously believed that the ship had originally been built with
clinker (or clench) planking, a technique in which the hull consisted of overlapping planks that bore the structural strength of the ship. Later examination indicates that the clinker planking was never present throughout the ship; only the outer structure of the sterncastle is built with overlapping planking, though not with a true clinker technique.
Construction method The hull of
Mary Rose is
carvel built. The ship is an early example of this method of construction in England. Her hull shape is now known to have been set out using the three arc method of producing the hull cross section. This geometric process is similar to that known to have been used some two hundred years later, so giving a much earlier date for this technique. This, and studies of other ships specified in the 15th century, is suggestive that the three arc methodology was probably already in existence before the time
Mary Rose was built. The construction sequence began with laying the keel and setting up the stem and sternpost. The midships and a few other frames (master frames) controlled the shape of the hull, so the s in those positions were fastened to the top of the keel. Then planking started with the s being fastened to the keel and those floors that were already installed. A temporary timber batten (called a ribband) was fastened across the floors that had been fitted and the remaining floors were shaped to fit the curve delineated by the ribbands and the garboards. The keelson was fastened over the top of the floors and planking continued up from the garboards to near the end of the floors. The first s were then installed, again using ribbands to achieve a fair shape relative to the master frames. The hull construction continued with phases of planking and the fitting of second and third futtocks until deck level was reached.
Mary Rose does not have the characteristic dove-tailed mortises seen joining the floors and first futtocks in
Basque-built ships such as the
Red Bay wreck 24M. There is some fastening of floors to timbers in
Mary Rose that is less systematic and robust, but there are no treenails connecting frame elements to each other as seen on later vessels. This demonstrates that the hull was not made by first building the hull framework and then adding the planking once that was complete. Instead planking and framing were carried out in alternating steps, with later futtocks being added as planking carried on up to the weather deck level. This is in sharp contrast to the usual way of building a carvel hull today. The construction sequence used for
Mary Rose was typical for a ship built during the lengthy transition period during which carvel became established in Northern Europe and the precise detail is one of the milestones in that story.
Sails and rigging raised from the
Mary Rose Although only the lower fittings of the rigging survive, a 1514 inventory and the only known contemporary depiction of the ship from the
Anthony Roll have been used to determine how the
Mary Rose was rigged. Nine, or possibly ten, sails were set from four masts and a bowsprit: the
foremast had two square sails and the
mainmast three; the
mizzen mast had a
lateen sail and a small square sail; the
bonaventure mizzen had at least one lateen sail and possibly also a square sail; and the
bowsprit set a small square
spritsail. According to the
Anthony Roll illustration (see top of this section), the
yards (the
spars from which the sails were set) on the foremast and mainmast were also equipped with sheerhooks – twin curved blades sharpened on the inside – that were intended to cut an enemy ship's rigging during boarding actions. The operation of
Mary Rose rig and some of its fitments were substantially different from several phases of later versions of square rig. All the yards were hoisted and lowered as part of the normal processes of setting, ing or reducing sail. The furling of the square sails pulled much of the bulk of the sail into the centre of the yard, so the work aloft did not involve a lot of work on the yards (the foot-rope did not come into use until the early 18th century), with much being done from the tops. Ships of this era generally did not have reefing points (though they existed on boats' sails). Instead a square sail might be equipped with a bonnetan extra section of sail that is laced onto the foot of a square sail. Instead of reefing, the bonnet was removed. Lacing that would suit a bonnet was found on
Mary Rose.
Performance When the wreck of Mary Rose was first recovered, there was surprise that this was not the beamy vessel that was expected. The relatively narrow length to breadth ratio was accompanied by , particularly in the run (the underwater hull shape the midship section). Even in the full sections in the forward part of the hull there are some hollow lines. Generally, hull shape is a major contributor, in conjunction with the efficiency of the sails, to good sailing performance. This hull shape can certainly explain the reported good sailing qualities that
Mary Rose displayed prior to her rebuild. The sailing capabilities of the
Mary Rose were commented on by her contemporaries and were once even put to the test. In March 1513 a contest was arranged off
The Downs, east of
Kent, in which she raced against nine other ships. She won the contest, and Admiral Edward Howard described her enthusiastically as "the noblest ship of sayle [of any] gret ship, at this howr, that I trow [believe] be in Cristendom". Several years later, while sailing between
Dover and The Downs, Vice-Admiral
William Fitzwilliam noted that both the
Henry Grace à Dieu and the
Mary Rose performed very well, riding steadily in rough seas and that it would have been a "hard chose" between the two. The reports of good sailing performance early in her career did not continue after successive repairs and the major rebuild altered her characteristics.
Armament of the
Froissart Chronicle depicting the
Battle of Sluys in 1340. The picture clearly shows how medieval naval tactics focused on close combat fighting and boarding. The
Mary Rose represented a transitional ship design in naval warfare. Since ancient times, war at sea had been fought much as on land: with melee weapons and bows and arrows, only on floating wooden platforms rather than battlefields. Though the introduction of guns was a significant change, it only slowly changed the dynamics of ship-to-ship combat. As guns became heavier and able to take more powerful gunpowder charges, they needed to be placed lower in the ship, closer to the water line. Gunports cut in the hull of ships had been introduced as early as 1501, only about a decade before the
Mary Rose was built. This made
broadsides – coordinated volleys from all the guns on one side of a ship – possible, at least in theory, but in practice this was a relatively minor part of the gunnery tactics of the time. Throughout the 16th century and well into the 17th century the focus was on countering the oar-powered
galleys that were armed with heavy guns in the bow, facing forwards, which were aimed by turning the entire ship against its target. Sailing warships did this first with their
chase guns. Combined with inefficient gunpowder and the difficulties inherent in firing accurately from moving platforms, this meant that boarding remained the primary tactic for decisive victory throughout the 16th century.
Bronze and iron guns s and two
demi-cannons from the
Mary Rose on display at the
Mary Rose Museum in
Portsmouth Mary Rose served during a period of both the development of ship-borne guns and the design features of ships that deployed these weapons. By the time of her sinking, the number of heavy guns had roughly doubled. The heavy armament was a mix of older-type
wrought iron and more modern cast bronze guns, which differed considerably in size, range and design. The large iron guns were made up of staves or bars welded into cylinders and then reinforced by shrinking iron hoops and
breech loaded and equipped with simpler
gun-carriages made from hollowed-out elm logs with only one pair of wheels, or without wheels entirely. The bronze guns were cast in one piece and rested on four-wheel carriages which were essentially the same as those used until the 19th century. The breech-loaders were cheaper to produce and both easier and faster to reload, but could take less powerful charges than cast bronze guns. Generally, the bronze guns used cast iron shot and were more suited to penetrate hull sides while the iron guns used stone shot that would shatter on impact and leave large, jagged holes, but both could also fire a variety of ammunition intended to destroy rigging and light structure or injure enemy personnel. The majority of the guns were small iron guns with short range that could be aimed and fired by a single person. The two most common are the
bases,
breech-loading swivel guns, most likely placed in the castles, and
hailshot pieces, small muzzle-loaders with rectangular bores and fin-like protrusions that were used to support the guns against the railing and allow the ship structure to take the force of the recoil. Though the design is unknown, there were two
top pieces in a
1546 inventory (finished after the sinking) which were probably similar to a base, but placed in one or more of the fighting tops. near Portsmouth The ship went through several changes in her armament throughout her career, most significantly accompanying her "rebuilding" in 1536 (see below), when the number of anti-personnel guns was reduced and a second tier of carriage-mounted long guns fitted. There are three inventories that list her guns, dating to 1514, 1540 and 1546. Together with records from the armoury at the
Tower of London, these show how the configuration of guns changed as gun-making technology evolved and new classifications were invented. In 1514, the armament consisted mostly of anti-personnel guns like the larger breech-loading iron
murderers and the small
serpentines,
demi-slings and stone guns. Only a handful of guns in the first inventory were powerful enough to hole enemy ships, and most would have been supported by the ship's structure rather than resting on carriages. The inventories of both the
Mary Rose and the Tower had changed radically by 1540. There were now the new cast bronze
cannons,
demi-cannons,
culverins and
sakers and the wrought iron
port pieces (a name that indicated they fired through ports), all of which required carriages, had longer range and were capable of doing serious damage to other ships. The analysis of the 1514 inventory combined with hints of structural changes in the ship both indicate that the gunports on the main deck were indeed a later addition. Various types of ammunition could be used for different purposes: plain spherical shot of stone or iron smashed hulls, spiked bar shot and shot linked with chains would tear sails or damage rigging, and
canister shot packed with sharp flints produced a devastating
shotgun effect. Trials made with replicas of culverins and port pieces showed that they could penetrate wood the same thickness of the ''Mary Rose's'' hull planking, indicating a stand-off range of at least . The port pieces proved particularly efficient at smashing large holes in wood when firing stone shot and were a devastating anti-personnel weapon when loaded with flakes or pebbles.
Hand-held weapons s found on board the
Mary Rose; for most of the daggers, only the handles have remained while the blades have either rusted away or have been preserved only as
concretions. To defend against being boarded,
Mary Rose carried large stocks of melee weapons, including
pikes and
bills; 150 of each kind were stocked on the ship according to the
Anthony Roll, a figure confirmed roughly by the excavations. Swords and daggers were personal possessions and not listed in the inventories, but the remains of both have been found in great quantities, including the earliest dated example of a British
basket-hilted sword. A total of 250
longbows were carried on board, and 172 of these have so far been found, as well as almost 4,000 arrows, bracers (arm guards) and other archery-related equipment. Longbow archery in Tudor England was mandatory for all able adult men, and despite the introduction of field artillery and handguns, they were used alongside new missile weapons in great quantities. On the
Mary Rose, the longbows could only have been drawn and shot properly from behind protective panels in the open waist or from the top of the castles as the lower decks lacked sufficient headroom. There were several types of bows of various size and range. Lighter bows would have been used as "sniper" bows, while the heavier design could possibly have been used to shoot fire arrows. The inventories of both 1514 and 1546
Crew Throughout her 33-year career, the crew of the
Mary Rose changed several times and varied considerably in size. It would have a minimal skeleton crew of 17 men or fewer in peacetime and when she was "
laid up in ordinary" (in reserve). The average wartime manning would have been about 185 soldiers, 200 sailors, 20–30 gunners and an assortment of other specialists such as surgeons, trumpeters and members of the admiral's staff, for a total of 400–450 men. When taking part in land invasions or raids, such as in the summer of 1512, the number of soldiers could have swelled to just over 400 for a combined total of more than 700. Even with the normal crew size of around 400, the ship was quite crowded, and with additional soldiers would have been extremely cramped. , who perished with the
Mary Rose; contemporary miniature by
Hans Holbein the Younger Little is known of the identities of the men who served on the
Mary Rose, even when it comes to the names of the officers, who would have belonged to the gentry. Two admirals and four captains (including
Edward and Thomas Howard, who served both positions) are known through records, as well as a few ship masters,
pursers, master gunners and other specialists. Forensic science has been used by artists to create reconstructions of faces of eight crew members, and the results were publicised in May 2013. In addition, researchers have extracted DNA from remains in the hopes of identifying origins of crew, and potentially living descendants. Of the vast majority of the crewmen, soldiers, sailors and gunners alike, nothing has been recorded. The only source of information for these men has been through
osteological analysis of the human bones found at the wrecksite. An approximate composition of some of the crew has been conjectured based on contemporary records. The
Mary Rose would have carried a captain, a master responsible for navigation, and deck crew. There would also have been a purser responsible for handling payments, a
boatswain, the captain's second in command, at least one carpenter, a pilot in charge of navigation, and a cook, all of whom had one or more assistants (mates). The ship was also staffed by a
barber-surgeon who tended to the sick and wounded, along with an apprentice or mate and possibly also a junior surgeon. The only positively identified person who went down with the ship was Vice-Admiral
George Carew. McKee, Stirland and several other authors have also named Roger Grenville, father of
Richard Grenville of the Elizabethan-era
Revenge, captain during the final battle, although the accuracy of the sourcing for this has been disputed by maritime archaeologist Peter Marsden. The bones of a total of 179 people were found during the excavations of the
Mary Rose, including 92 "fairly complete skeletons", more or less complete collections of bones associated with specific individuals. Analysis of these has shown that crew members were all male, most of them young adults. Some were no more than 11–13 years old, and the majority (81%) under 30. They were mainly of English origin and, according to archaeologist Julie Gardiner, they most likely came from the
West Country; many following their aristocratic masters into maritime service. There were also a few people from continental Europe. An eyewitness testimony right after the sinking refers to a survivor who was a
Fleming, and the pilot may very well have been French. Analysis of oxygen
isotopes in teeth indicates that some were also of southern European origin. At least one crewmember was of North African ancestry. In general they were strong, well-fed men, but many of the bones also reveal tell-tale signs of childhood diseases and a life of grinding toil. The bones also showed traces of numerous healed fractures, probably the result of on-board accidents. There are no extant written records of the make-up of the broader categories of soldiers and sailors, but since the
Mary Rose carried some 300 longbows and several thousand arrows there had to be a considerable proportion of
longbow archers. Examination of the skeletal remains has found that there was a disproportionate number of men with a condition known as
os acromiale, affecting their
shoulder blades. This condition is known among modern elite archery athletes and is caused by placing considerable stress on the arm and shoulder muscles, particularly of the left arm that is used to hold the bow to brace against the pull on the bowstring. Among the men who died on the ship it was likely that some had practised using the longbow since childhood, and served on board as specialist archers. A group of six skeletons was found close to one of the 2-tonne bronze
culverins on the main deck near the bow. Fusing of parts of the spine and
ossification, the growth of new bone, on several
vertebrae evidenced all but one of these crewmen to have been strong, well-muscled men who had been engaged in heavy pulling and pushing, the exception possibly being a "
powder monkey" not involved in heavy work. These have been tentatively classified as members of a complete gun crew, all having died at their battle station. == Military career ==