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| Nationality | Great Britain |
| Nominal Guns | 68 |
| Approved | 1745 |
| Designer | |
| Rate | Third Rate |
| Type | Ship of the Line |
| Designed Crew | 520 |
| Ships in Class | 5 |
| Design Armament | Broadside Weight = 731.00 Imperial Pound ( 331.51 kg) | BWAS-1714 | |
|---|---|---|---|
| Lower Gun Deck | 26 x British 32-Pounder | ||
| Upper Gun Deck | 28 x British 18-Pounder | ||
| Quarterdeck | 12 x British 9-Pounder | ||
| Forecastle | 2 x British 9-Pounder | ||
| Design Dimensions and Ship Information | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ordered | Shipyard | Launched | Out of service | Fate | Gundeck Length | Length of Keel | Breadth | Depth in hold | Burthen | |
| As Designed | 160' 0" | 131' 4" | 45' 0" | 19' 4" | 1,414 56⁄94 | |||||
Vanguard (68)
1748-1774 British 68 Gun 3rd Rate Ship of the Line | 3.10.1745 | East Cowes - Isle of Wight | 16.4.1748 | 13.4.1774 | Sold | 160' 0" | 130' 9 ½" | 45' 2" | 19' 4" | 1,419 23⁄94 |
Grafton (68)
1750-1767 British 68 Gun 3rd Rate Ship of the Line | 6.8.1745 | Portsmouth Dockyard - Portsmouth | 29.3.1750 | 25.8.1767 | Sold | 160' 0" | 131' 4" | 45' 0" | 19' 4" | 1,414 56⁄94 |
Swiftsure (68)
1750-1773 British 68 Gun 3rd Rate Ship of the Line | 31.8.1745 | Deptford Dockyard - Deptford | 25.5.1750 | 2.6.1773 | Sold | 160' 0" | 131' 4" | 45' 2 ¼" | 19' 4" | 1,426 42⁄94 |
Northumberland (68)
1750-1780 British 68 Gun 3rd Rate Ship of the Line 1777 Renamed "Leviathan" | 22.6.1744 | Plymouth Dockyard - Plymouth | 1.12.1750 | 27.2.1780 | Foundered | 160' 0" | 131' 4" | 45' 0" | 19' 4" | 1,414 56⁄94 |
Buckingham (68)
1751-1779 British 68 Gun 3rd Rate Ship of the Line 1777 Renamed "Grampus" | 28.10.1745 | Deptford Dockyard - Deptford | 30.4.1751 | 11.11.1779 | Foundered | 160' 0" | 131' 4" | 45' 4" | 19' 4" | 1,435 62⁄94 |