About the Norsea 27

The NØRSEA 27 has been designed by Lyle Hess in 1977. About 250 boats have been produced using the same original mold which was used in 1979 for hull #1.

Plume was built in the Nor’Sea Yachts boatshop in Ontario (CA) managed by Bob Eeg.

Lyle Hess wanted a boat small enough to be trailerable, without any concession on the seaworthiness. The reasonable size of the NØRSEA 27, its legendary robustness, and its limited draft have been key points in our choice of a sailboat for the San Francisco bay, and beyond if the winds are favorable¹.

In addition, the NØRSEA 27 is one of the only sailboat that you can get as a kit (3 versions available to complete yourself) on the West Coast. It was important for us to be able to monitor the quality of the work done at the boatshop and to be able to do the finish work ourselves (money wise and to get exactly what we wanted). Bog Eeg was kind enough to let us a full access to his boatshop and we were working there every other weekend during six month. Beside the advantage of having professional tools, we learned a lot from Bob and his excellent carpenter Alonso.

Specifications

Main Dimensions
 

LOA	9.4	m	31	ft
LOD	8.2	m	27	ft
LWL	7.6	m	25	ft
Bmax	2.4	m	8	ft
Draft	1.2	m	3'10"	ft+in
Disp.*	3860	kg	8500	lb
VD	3.76	m3	133	ft3
Ballast	1400	kg	3100	lb
SA	36.6	m2	394	ft2

^* The specification of the Norsea 27 shows 8100 pounds of displacement. However this number is probably the lowest limit. There are reports of fully equiped Norsea weighting more than 11'000 pounds. Plume was weighted at 8400 pounds before going in water, with sails and one anchor, but some equipement like the stove or head were still missing. So 8500 pound is probably a realistic number for the empty boat.

LOA	Length Over All	Longueur Hors Tout
LOD	Length On Deck	Longueur de Coque
LWL	Length at Water Line	Longueur à la Flotaison
Bmax	Maximum Beam	Beau Maximum
Draft	"Draft"	Tirant d'eau
VD	Volume Displacement = Displ / 64	Déplacement en Volume = Displ / 1025
SA	Sail Area	Surface de Voilure

Non Dimensional Parameters
 

Ballast Ratio	36%	Blst / Displ
SDR	15.1	SA / VD1/3
CSF	1.57	Bmax / VD1/3

SDR	Sail area Displacement Ratio Give an idea of the sailing power	Rapport Voilure / Déplacement Fournit une idée de la puissance du voilier
CSF	Capsize Screening Factor Simplified evaluation of the boat blue water capability (has to be <2)	Facteur de Retournement Evalue de manière très simplifiée l'aptitude d'un bateau à la grande croisière

Capacities
 

Water Tank	2x75=150	l	2x20=40	US gal
Fuel Tank	110	l	30	US gal

Engine
 

Type	Yanmar 2GM20F
Power	16.0 / 3400	HP / rpm
Prop	CDI 14x10