The Mary Rose was a carrack in the English Tudor navy of King Henry VIII. She was launched in 1511 and served for 34 years in several wars against France, Scotland, and Brittany. After being substantially rebuilt in 1536, she saw her last action on 19 July 1545. She led the attack on the galleys of a French invasion fleet, but sank off Spithead in the Solent, the strait north of the Isle of Wight.
Construction
Construction of Mary Rose began on 29 January 1510 in Portsmouth and she was launched in July 1511. She was then towed to London and fitted with rigging and decking, and supplied with armaments. Other than the structural details needed to sail, stock and arm the Mary Rose, she was also equipped with flags, banners and streamers (extremely elongated flags that were flown from the top of the masts) that were either painted or gilded.
Constructing a warship of the size of the Mary Rose was a major undertaking, requiring vast quantities of high-quality material. For a state-of-the-art warship, these materials were primarily oak. The total amount of timber needed for the construction can only be roughly calculated since only about one third of the ship still exists. One estimate for the number of trees is around 600 mostly large oaks, representing about 16 hectares (40 acres) of woodland.
Battle of the Solent
The English were becalmed in port and unable to manoeuvre. On 19 July 1545, the French galleys advanced on the immobilised English fleet, and initially threatened to destroy a force of 13 small galleys, or "rowbarges", the only ships that were able to move against them without a wind. The wind picked up and the sailing ships were able to go on the offensive before the oared vessels were overwhelmed. Two of the largest ships, the Henry Grace à Dieu and the Mary Rose, led the attack on the French galleys in the Solent.
Early in the battle something went wrong. While engaging the French galleys the Mary Rose suddenly heeled (leaned) heavily over to her starboard (right) side and water rushed in through the open gunports. The crew was powerless to correct the sudden imbalance, and could only scramble for the safety of the upper deck as the ship began to sink rapidly. As she leaned over, equipment, ammunition, supplies and storage containers shifted and came loose, adding to the general chaos. The massive port side brick oven in the galley collapsed completely and the huge 360-litre (90 gallon) copper cauldron was thrown onto the orlop deck above. Heavy guns came free and slammed into the opposite side, impeding escape or crushing men beneath them.
Raising the ship
Raising the Mary Rose meant overcoming delicate problems that had never been encountered before. The raising of the Swedish warship Vasa during 1959–61 was the only comparable precedent, but it had been a relatively straightforward operation since the hull was completely intact and rested upright on the seabed. It had been raised with basically the same methods as were in use in Tudor England: cables were slung under the hull and attached to two pontoons on either side of the ship which was then gradually raised and towed into shallower waters. Only one-third of the Mary Rose was intact and she lay deeply embedded in mud. If the hull were raised in the conventional way, there was no guarantee that it would have enough structural strength to hold together out of water.
Many suggestions for raising the ship were discarded, including the construction of a cofferdam around the wreck site, filling the ship with small buoyant objects (such as ping-pong balls) or even pumping brine into the seabed and freezing it so that it would float and take the hull with it. After lengthy discussions it was decided in February 1980 that the hull would first be emptied of all its contents and strengthened with steel braces and frames. It would then be lifted to the surface with floating sheerlegs attached to nylon strops passing under the hull and transferred to a cradle. It was also decided that the ship would be recovered before the end of the diving season in 1982. If the wreck stayed uncovered any longer it risked irreversible damage from biological decay and tidal scouring.