kayak IconThe Kodiak by Folboat
Folbot lines - Kodiak
Hydrostatics
Paddler Wt. 150 lbs. 200 lbs. 150 lbs 200 lbs.
Cargo Wt. * none none 100 lbs 100 lbs.
Waterline Lgth. 14' 1.6" 14' 2.2" 14' 2.8" 14' 3.4"
Waterline beam 22.7" 24.1" 24.8" 25.2"
Draft 5.2" 5.8" 6.4" 6.9"
Prismatic Coefficient 0.60 0.60 0.60 0.60
Block coefficient 0.28 0.29 0.31 0.32
Wetted surface in sq. ft. 19.78 21.65 23.18

24.58
Lbs./inch immersion
86.5
93.2
97.5
100.7



                   


Foot
Pounds		 Righting / Heeling Moments
               Fixed Weight
Folbot Stab graph
Degrees of Heel

* Fixed "paddler" weight has its center of gravity located 10" above the lowest part of the seat and 10" forward of the seat at back. The "cargo’s" center of gravity coincides with the kayak’s approximated center of gravity.

Length overall

 15'3/4" Beam 28"
Volume 17.07 cu. ft.
Cockpit size 171/4" x 451/2"
Cockpit coaming height .
Forward 103/4"
Aft 101/2"
Height of seat 2"
Weight 573/4 lbs.
Center of buoyancy* 52%
*With 250-lb. load .
The same force that rights a kayak on flat water contributes to its rolling motion on the face of a wave.

Reading the Stability Curves

The steeper the slope of the curve as it rises from 0°, the higher the initial stability. Beyond the maximum righting moment at the peak of the curve, the kayak enters an unstable region of decreasing stability which does little to slow the rolling of the kayak to the point of imminent capsize.

Note: Raising the center of gravity slightly will decrease the stability of a kayak while lowering it will increase it.

Stability Curves

1. 150 lb. paddler, no cargo

2. 200 lb. paddler, no cargo

3. 150 lb. paddler, 100 lb. cargo

4. 200 lb. paddler, 100 lb. Cargo

Calculated by Nautilus System™ computer program
Speed vs Resistance

These figures are derived from mathematical models based on a limited number of towing tests on flat water.

Kayak weight + 250-lb payload

Resistance in pounds, shown to hundredths to differentiate figures formerly rounded to tenths. A fit paddler can maintain a cruising speed at 3 pounds of drag. Only a few can work against 5 pounds of drag for long distances. See August ‘98 page 43 for more details.
(Factor added for soft plastic hulls when applicable):

*Calculated by John Winters
using the KAPER program

2 knots 1.02

3 knots 2.17

4 knots 4.44

4.5 knots 5.95

5 knots 8.35

6 knots 14.13

 

*Calculated by Matt Broze using
Taylor Standard Series:

2 knots 1.01

3 knots 2.15

4 knots 4.45

4.5 knots 6.07

5 knots 9.15

6 knots 16.27

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