San Ysidro

Nominal Guns74BWAS-1793
NationalityGreat Britain
OperatorRoyal Navy
PreviouslySpanish Third Rate ship of the line 'San Isidro' (1768) (74)
ShipyardReal Astillero de Esteiro - Ferrol ref:748
Ship ClassSan Isidro Classref:748
CategoryThird RateBWAS-1793
Ship TypeShip of the Line BWAS-1793
Sailing RigShip RiggedBWAS-1793


DimensionMeasurementTypeMetric EquivalentBWAS-1793
Length of Gundeck176' 0 ½"Imperial Feet53.6575 
Length of Keel144' 1 ⅜"Imperial Feet43.9007 
Breadth48' 11 ¼"Imperial Feet14.6368 
Depth in Hold20' 1 ½"Imperial Feet6.1087 
Burthen1,853 7894Tons BM 


3.1797Broadside Weight = 781 Imperial Pound ( 354.1835 kg)BWAS-1793
Lower Gun Deck28 British 32-Pounder
Upper Gun Deck30 British 18-Pounder
Quarterdeck8 British 9-Pounder
Forecastle6 British 9-Pounder

Crew Complement

Date# of MenNotesSource
3.1797590 BWAS-1793
22.9.180073 BWAS-1793

5 Commanding Officers

7.3.1797 - 10.1797CaptainMark Robert Kerr (1776-1840)BWAS-17935.1798 - 1800CaptainRobert Williams (1765-1837)BWAS-17931801 - 1802LieutenantJohn ManleyBWAS-17931803 - 1812LieutenantGeorge DecoeurdouxBWAS-17931812 - 1814LieutenantEdward LyonBWAS-1793

Service History

5.10.1797Arrived at PortsmouthBWAS-1793
5.1798Commissioned as a prison shipBWAS-1793
5.1798Refitted as a Unrated Prison Ship
22.9.1800Registered as a "sloop employed as a prison ship"BWAS-1793
9.1802Placed in ordinary at PlymouthBWAS-1793
6.1803Recommissioned as a prison shipBWAS-1793
1814Paid offBWAS-1793
3.11.1814Sold at Plymouth for £3,020BWAS-1793


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