Wharram Narai Mk I
| Length | |
| Hull Type | Catamaran |
| Rigging Type | Ketch |
| LOA | 42.00' (12.80m) |
| S.A. | |
| Beam | 15.50' (4.72m) |
| Displacement | 9500 lbs / 4309 kgs |
| Ballast | |
| Designer | James Wharram |
| First Built | 1968 |
| Length | |
| Hull Type | Catamaran |
| Rigging Type | Ketch |
| LOA | 42.00' (12.80m) |
| S.A. | |
| Beam | 15.50' (4.72m) |
| Displacement | 9500 lbs / 4309 kgs |
| Ballast | |
| Designer | James Wharram |
| First Built | 1968 |