5 Metre

5 Metre is a development sailing class of French origin.^[1]

Class symbol
Two 5 Metres in 1940: the left yacht is Hazard designed by Knud Reimers and the right one is Maribell by Tore Holm.
Development
Year	1929 (rule design)
Design	Development class
Boat
Crew	3
Draft	Maximum: 1.1 m (3 ft 7 in)
Hull
Type	Monohull
Hull weight	Minimum: 1,500 kg (3,300 lb)
LOA	About: 8.5 m (28 ft)
Hull appendages
Keel/board type	Fixed
Rig
Rig type	Bermuda rig

History

The 5 Metre rule was created in France in 1929 and not a according of the International rule in contrast to other Metre yachts.^[2]

The formula

The measurement formula is given in the 2021 International Five Metre Rating Rules:

${\displaystyle 5.000{\mbox{ metres}}={\frac {L+{\sqrt[{2}]{S}}-F-{\frac {B}{2}}}{2}}}$

where

• ${\displaystyle L}$ = length for rating (as defined by rule 3.4)
• ${\displaystyle S}$ = measured sail area
• ${\displaystyle F}$ = freeboard in metres (as defined by rule 3.5)
• ${\displaystyle B}$ = width in metres (as defined by rule 3.6)

See also

• 5.5 Metre