Lagoon 400 S2 Hydra IX (23/02/2016)
| Architects | Van Peteghem-Lauriot Prévost |
| Interior design | Nauta Design |
| Length over all | 11,97m / 39'3'' |
| Beam | 7,25m / 23'9'' |
| Draft | 1,21m / 4'00'' |
| Mast clearance | 20,30m / 66'7'' |
| Light displacement (EEC) | 10,35t / 22 817 Lbs |
| Sail area | 84 m² / 904 sq.ft. |
| Full-batten mainsail | 56 m² / 603 sq.ft. |
| Square top mainsail (opt.) | 60,5 m² / 651 sq.ft. |
| Furling genoa | 28 m² / 301 sq.ft. |
| Code 0 (opt.) | 73 m² / 785 sq.ft. |
| Engine (std) | 2 x 29 cv YANMAR 3YM30 / 2 x 29 HP YANMAR 3YM30 |
| Fuel capacity | 2 x 200 l / 2 x 53 US gal |
| Fresh water capacity | 1 x 300 l / 79 US gal |
| No. Of berths | 6 to 12 |
| EC certification | A :10 ; B :14 ; C : 20 ; D: 20 |