| Name: | GRETNA | 
| Type: | Inshore Minesweeper | 
| Keel: | |
| Launched: | 11/04/1918 | 
| Completed: | 1918 | 
| Builder: | JT Eltringham & Co Ltd | 
| Yard: | Willington Quay | 
| Yard Number: | 335 | 
| Dimensions: | 710disp - 930disp, 220.0 x 28.5 x 7.5(draft)ft | 
| Engines: | 2 x VT3cyl (13.25, 21.25 & 34 x 21ins), 2200ihp | 
| Engines by: | Wallsend Slipway & Engineering Co Ltd, Wallsend | 
| Propulsion: | 2 x Screws, 16.5knots | 
| Construction: | Steel | 
| Armament: | 1 x 4.0ins QF, 1 x 12pdr AA guns | 
| History: | |
| 1918 | British Royal Navy | 
| 03/10/1928 | Broken up | 
| Comments: | Member of the Hunt Class (Group 2) or Aberdare group | 
| 03/10/1928: Sold at Sheerness to Alloa Ship Breaking Co Ltd for £2271 | |
| 22/10/1928: Arrived at Charlestown on the Firth of Forth | |
| 31/10/1928: Breaking up commenced by Alloa Ship Breaking Co Ltd | 

Above photo is of GAINSBOROUGH, a member of the same class. Photo courtesy of George Robinson