Beyaz At Başlı

Posted by Hilmi on Friday 29th of January 2021 14:20

55 ZİRA OTTOMAN GALLEON

In an edict dated 1715, the length, width and depth values of the galleons of 55, 53 and 51 zira are written. All three galleons were required to be built 18 zira of width and 8,5 zira of the depth of the warehouse.

Source: BOA, MAD 2850, s. 103 (30 Ca. 1127/3 Haziran 1715). (30 June 1715)

18 zira the length is 13.64 meters.
8.5 zira the length is 6.44 meters.

A nice coincidence french galleon Le Dauphin Royal (1738) has the same tonnage backbone and width. If the two ships have the same the zira length value and deck widths, the deck lengths must also be the same.

Le Dauphin Royal (1738)

Length of Gundeck : 153’ 8” (49,92 m.) (Eng Feet: 163,77)
Length of Keel : 137’ (44,50 m.) (Eng Feet: 146,01)
Breadth : 42’ (13,64 m.) (Eng Feet: 44,76)
Depth in Hold : 20’ 6” (6,66 m.) (Eng Feet: 21,85)
Bruthen : 1459 ton BM

Tonaj Keel (ZIRA) = ((163,77-(44,76*3/5))*0,3048)/0,758 = 55,05 Zira.

Let's calculate the 55 zira galleon by using the keel calculation formula for tonnage. 55 zira the ottoman galleon should be a little shorter than the French galleon.

French galleon: 55.05 zira
Ottoman galleon: 55 zira.

Tonaj Keel (ZIRA) = ((163,64-(44,76*3/5))*0,3048)/0,758 = 55 Zira.

Beyaz At Başlı (1715) 55 Zira

Length of Gundeck : 49,88 m. (from formule)
Length of Keel : 41,69 m. (55 zira) (The length in the shipbuilding decree in 1715)
Breadth : 13,64 m. (18 zira) (The length in the shipbuilding decree in 1715)
Dept in Hold : 6,44 metre (8,5 zira) (The length in the shipbuilding decree in 1715)
Bruthen : 1458 tonBM