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Sailboat specifications and datasheets

Hobie Cat 21 SE

The Hobie Cat 21, here in "SE" version, is a 21’4” double handed beach catamaran designed by Hobie Cat and John Wake. She was built by Hobie Cat (United States) and made of sandwich foam / fiberglass / vinylester. This sailboat was produced between 1987 and 1990.
Hobie Cat 21 Hobie Cat 21 sailplanHobie Cat 21 sailingHobie Cat 21 sailing
Hobie Cat 21's   Main Features
Model Hobie Cat 21
Version SE
Type of hull Catamaran
Shipyard
Designer Hobie Cat
John Wake
Construction Hulls and deck:
sandwich foam / fiberglass / vinylester
First built hull 1987
Last built hull 1990
Appendages Centerboard :
Twin centerboards
Helm 1 tiller
Rudder 2 semi-spade rudders
Unsinkable No
Trailerable Yes
French navigation category 6
Standard public price (indicative only) N/A
Hobie Cat 21's   Main dimensions
Hull length 21’ 4”
Waterline length 20’ 6”
Beam (width) 10’
Draft 3’ 1”
Draft when appendages up 0’ 11”
Light displacement 639 lbs
Hobie Cat 21's   Rig and sails
Upwind sail area 315 sq.ft
Downwind sail area 541 sq.ft
Mainsail area 229 sq.ft
Jib area 86 sq.ft
Asymetric spinnaker area 312 sq.ft
Rigging type Sloop Marconi fractional
Rotating spars Yes
Mast position Fore beam stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 1
Spreaders angle Swept-back (diamond)
IiFore triangle height (from mast foot to fore stay attachment) 21’ 8”
PiMainsail hoist measurement (from tack to head) 29’ 11”
Hobie Cat 21's   Performances
Crew 2 / 3
Trapezes 2 set(s)
Upwind sail area to displacementiThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.
The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. Upwind : under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 23 it indicates a fast sailboat.
66.78
Downwind sail area to displacementiThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.
The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. Upwind : under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 23 it indicates a fast sailboat.
114.76
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).
The DLR can be used to compare the relative mass of different sailboats no matter what their length: a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat.
34
Hobie Cat 21's   Auxiliary engine
Engine type Outboard engine
Engine 3 HP

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