SNAPDRAGON 670

Sailboat Specifications

both US imperial metric

Hull Type:

Twin Keel

Rigging Type:

Masthead Sloop

LOA:

22.00 ft / 6.71 m

LWL:

19.00 ft / 5.79 m

Beam:

8.00 ft / 2.44 m

S.A. (reported):

238.00 ft² / 22.11 m²

Draft (max):

2.67 ft / 0.81 m

Displacement:

3,240 lb / 1,470 kg

Ballast:

1,450 lb / 658 kg

S.A./Disp.:

17.44

Bal./Disp.:

44.75

Disp./Len.:

210.88

Construction:

FG

First Built:

1963

Builder:

Thames Marine (UK)

Designer:

David Feltham/Thames Marine

Sailboat Calculations

Definitions

S.A./Disp.:

17.44

Bal./Disp.:

44.75

Disp./Len.:

210.88

Comfort Ratio:

15.76

Capsize Screening Formula:

2.17

S#:

2.63

Rig and Sail Particulars

help

I:

29.50 ft / 8.99 m

J:

8.50 ft / 2.59 m

P:

25.00 ft / 7.62 m

E:

9.00 ft / 2.74 m

S.A. Fore:

125.38 ft² / 11.65 m²

S.A. Main:

112.50 ft² / 10.45 m²

S.A. Total (100% Fore + Main Triangles)

237.88 ft² / 22.10 m²

S.A./Disp. (calc.):

17.43

Est. Forestay Len.:

30.70 ft / 9.36 m

Mast Height from DWL:

32.50 ft / 9.91 m

Sailboat Links

Designers:

David Feltham

Builders:

Thames Marine (UK)

Associations:

Snapdragon, Mirage and Invaders Association

Download Boat Record:

PDF

Notes

A standard keel model was also available: Draft = 3.75'/1.14.

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