The Portman 36 is a 36.0ft masthead sloop built in fiberglass by Watkins Yachts between 1979 and 1980.
19 units have been built.
The Portman 36 is a moderate weight sailboat which is under powered. It is stable / stiff and has an excellent righting capability if capsized. It is best suited as a bluewater cruising boat. The fuel capacity is average. There is a short water supply range.
Main features
| Model | Portman 36 | ||
| Length | 36 ft | ||
| Beam | 10.50 ft | ||
| Draft | 4.50 ft | ||
| Country | United states (North America) | ||
| Estimated price | $ 0 | ?? | 
Ratios
| Sail area / displ. | 13.78 | ||
| Ballast / displ. | 37.50 % | ||
| Displ. / length | 283.10 | ||
| Comfort ratio | 34.44 | ||
| Capsize | 1.67 | 
Hull
| Hull type | Monohull fin keel with rudder on skeg | ||
| Construction | Fiberglass | ||
| Waterline length | 29.33 ft | ||
| Maximum draft | 4.50 ft | ||
| Displacement | 16000 lbs | ||
| Ballast | 6000 lbs | ||
| Hull speed | 7.26 knots | 
Rigging
| Rigging | Masthead Sloop | ||
| Sail area (100%) | 545 sq.ft | ||
| Air draft | 0 ft | ?? | |
| Sail area fore | 0 sq.ft | ?? | |
| Sail area main | 0 sq.ft | ?? | |
| I | 0 ft | ?? | |
| J | 0 ft | ?? | |
| P | 0 ft | ?? | |
| E | 0 ft | ?? | 
Engine
| Nb engines | 1 | ||
| Total power | 40 HP | ||
| Fuel capacity | 60 gals | 
Accommodations
| Water capacity | 80 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 | 
Builder data
| Builder | Watkins Yachts | ||
| Designer | ?? | ||
| First built | 1979 | ||
| Last built | 1980 | ||
| Number built | 19 | 
 
                         
                                                     
                                         
                                         
                                         
                                         
                                         
                                        