To bring a ship onshore for repair, and you do not have a dry-dock, you have to reduce the weight of the vessel as much as possible - means you have to remove yards (also partly the masts), guns, ballast etc.
Usually, if the planking of the hull has to be repaired, the ships were not taken onshore, but "careened"
A view of the Birgu (Vittoriosa) side of the Malta Dockyards, depicting the HMS Hastings being careened, her starboard side of her hull exposed for maintenance and repairs. The viewpoint shown of the Collegiate Church of St Lawrence (left background) in the skyline suggests this scene was based on a view from the eastern side of Senglea. In the left foreground are two men on a rowing boat, beside them a smaller one with a barrel in it. Inscribed ‘H M S Hastings. In Malta Dockyard Decemeber 7 1840’.
collections.rmg.co.uk
The second rate warship ‘Formidable’ is shown being careened at the dockyard in the Grand Harbour at Malta. With the ship’s port underside exposed, dozens of men attend her from floating platforms and nearby boats, some depicted actively cleaning her hull. Several other rowing boats circulate in the still waters of the foreground, whilst behind at dockside activity centres on the base of the halyard holding ‘Formidable’ in place. Behind, more faintly drawn in a suggestion of aerial perspective, are the buildings of Birgu, with St. Lawrence's Church given particular prominence, framed neatly by the stern end of the ship. Inscribed: “H.M.S. Formidable. Malta Dockyard 31 Jany 1843”. Hand-coloured. PAF8040 is a duplicate.
collections.rmg.co.uk
A paper calotype negative. A view from the dock side looking towards the main and mizzen mast of the Maltese Palacea Brig, hove down at an extreme angle. In the foreground are the tops of barrels. Large blocks can be seen on both masts keeping the ship careened over. The lower yards on both masts have been scandalized (set at an acute angle to the mast). The reverse of the negative has a pencil number 5, which corresponds to the list sent with a letter dated 13 February 1846 by Calvert Jones to WHF Talbot [BL, LA46-26]. It states: '5. Palacea brig. hove down.'
collections.rmg.co.uk
Only to underline once more:
I do not criticize the shown diorama - it is great and a very good way of showing and presenting such a POF-model .... Thanks