Vanguard 420
| Length | |
| Hull Type | Monohull |
| Rigging Type | Fractional Sloop |
| LOA | 13.78' (4.20m) |
| S.A. | 140.00 sq ft (13.01 m2) |
| Beam | 5.38' (1.64m) |
| Displacement | 230 lbs / 104 kgs |
| Ballast | |
| Designer | Christian Jensen & Carl Miller |
| First Built | 1959 |
| Length | |
| Hull Type | Monohull |
| Rigging Type | Fractional Sloop |
| LOA | 13.78' (4.20m) |
| S.A. | 140.00 sq ft (13.01 m2) |
| Beam | 5.38' (1.64m) |
| Displacement | 230 lbs / 104 kgs |
| Ballast | |
| Designer | Christian Jensen & Carl Miller |
| First Built | 1959 |