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Cape Ann Storm LT (light)
Technical specs...
  High performance wood strip touring kayak for smaller to medium size paddlers.
Second smallest model






        

See Storm LT building by Steen Bondo in Denmark

Storm LT description | MATERIALS
Larger displacement version of this kayak: Storm
Smaller displacement version of this kayak: StormSLT
Property English Units Metric Units Comments
Length Overall 16.25 ft 4,953 m length from bow to stern as designed
Beam Overall 21.5 in 54,61 cm widest part of kayak
Draft 3.875 in 9,842 cm baseline to Designed Water Line (DWL)
Volumetric Properties
Displacement 201.3 lb 91,5 kg at DWL
Volume 3.14 ft^3 89,05 liters displacement in cubic feet or liters of sea water
Wetted Surface 17.96 ft^2 1,668 m^2 underwater surface area to DWL
LCB 7.752 ft 2,363 m longitudinal center of buoyancy from x=0
LCB % LWL 52.9 % 52,9 % LCB as a percetage of waterline length from x=0
VCB 2.43 in 6,17 cm vertical center of buoyancy from baseline
Waterplane Properties
Waterplane area 15.179 ft^2 1,41 m^2 at DWL
LCF 7.63 ft 2,32 m longitudinal center of flotation from x=0
LCF % LWL 52 % 52 % LCF as a percetage of waterline length from x=0
LWL 14.653 ft 4,466 m length of waterline; same as DWL
BWL 19,48 in 49,48 cm beam of waterline
Sinkage 80.95 lb/in 14,48 kg/cm pounds displaced per one inch of sinkage
Form Coefficients (no units, same for metric)
Cb 0.409       block
Cm 0.766       midship
Cp 0.534       prismatic
Cwp 0.638       waterplane
Area/Displacement 8.36       Area / Displacement ratio [ft^2/(ft^3)^2/3]
Length / Beam 9.025       Length / Beam ratio [LWL / BWL]
Miscellaneous
Area of cockpit 2.96 ft^2 0,275 m^2 for cockpit template in plans (red)
Circumference 6.76 ft 2,06 m cockpit
Depth in front 12 in 30,5 cm inside cockpit
Depth in rear 9.25 in 23,5 cm inside cockpit
Deck area 21.15 ft^2 1,965 m^2 includes cockpit area
Hull area 28.266 ft^2 2,625 m^2  
Kayaker Fit & Loading Smaller to medium size paddlers
140 lb min. -> 160 lb ideal -> 180 lb max. (63,7 -> 72,8 -> 82 kg)
Recommended max. load: 220lb (100 kg)
Paddler height: under 6 feet (182 cm)
x=0 the start of waterline (DWL) at bow

All English units (ft / in) in the plans have a Metric (m / cm) eqivalent !

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Material
  Wood strips
assumes bead & cove strips and you need either the 5/8" OR 3/4" strips. Not both.
Unit converter
Metric / Standard unit converter
Coverage + 'fudge factor' for waste Surface area (ft2) (m2) Total length of 3/4" strips (ft) (m) Number of 3/4"x 16ft strips Total length of 5/8" strips (ft) (m) Number of 5/8"x 16ft strips
Total area of kayak (+ cockpit) 49.4  (4,59) 949  (289) 59 1186  (361) 74
Total area + 5% 51.8  (4,82) 996  (303) 62 1245  (379) 77
Total area + 10% 54.3  (5,05) 1044  (318) 65 1305  (397) 81

Notes & Tips:
  • 3/4" strip width = 1,9 cm
  • 5/8" strip width = 1,58 cm
  • 16 feet = 4,87 m
  • The accuracy of figures in the table is within (+ -) few feet
  • For custom calculation, see the Wood strip Calculator
  • The coverage based on the "+ 10%" is most recommended
  • Estimate wood for deck inlays as a percentage of the deck surface area
  • Ideal strip length is between 10 - 16 feet
  Fiberglass coverage
assumes complete coverage of inside and outside of hull and deck to make full sandwich core
 
Coverage of fiberglass
(plain weave e-glass)		 yards
(yd) 		feet
(ft) 		meters
(m) 		How to estimate
Deck - 4 oz. e-glass 11.8   10,8 two times the kayak length + 1 yard (1m)
Hull - 6 oz. e-glass 12.2   10,8 two times the kayak length + 1 yard (1m)
2" wide glass tape   74 22,6 four times the kayak length + 9 ft (3m)

Notes & Tips:
  • Minimum width of fabric is 38" - will no allow for full hull abrasion patch
  • Order 50" width of the 4oz. glass to get the extra hull abrasion patch material
  • If 50" fabric is not available, order one 'waterline length - LWL' of additional cloth (any weight)
  • Round figures to the nearest higher number when ordering fabric
  • The 6oz. glass can always replace the 4oz.
  • See different types of reinforcement fabrics
  • Glass tape is sold in 'feet' and cloth in yards (in the US)
  • Glass tape is used to bond the kayak shells and for additional stem reinforcement
  Epoxy
  Minimum total volume of epoxy mix (resin + hardener): 2.5 gallons

Notes & Tips:
  • Usage may vary (+-) 0.5 gallon as a result of the thickness of lay-up, fillet size, unused batches, spills, bad (unmixed) batches, care in application (overapplication), additional composite components such as coamings, hatch seals, rudders etc...
  • If epoxy is sold by weight, the density of epoxy is very close to water (1dm3 = 1 liter = 1kg)
  • 1 gallon = 3.8 liters
  • Learn about epoxy

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Last page update: 9 May 2024