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Design & Illustration

Jack 14 SOT

Particulars

Plans, Jack 14 SOT - 120 EUR Purchase

I have had several questions about a short and easily handled kayak for fishing, outdoor painting, hunting, or for short trips in rivers, lakes, or archipelagoes. The Jack 14 hull is ideal for these perfect for these purposes. Therefore I redrew it as a SOT kayak (sit-on-top). The kayak can be built with a narrow surfski cockpit to minimize the free volume for safety in rough conditions, or as a big open cockpit with lots of room for fishing gear, an echo sounder, and perhaps an electric trolling motor. The dimensions are the same as the standard Jack 14 – 420x63 cm and a load capacity of approx 140 kg.

Otherwise, the story behind it is the same as for the standard version...

 

Particulars

Jack 14 SOT

Length¹ 420/396 cm (overall/WL)
Beam 63/60 cm (overall/WL)
Draft 11 cm
Weight² 15-17 kg
Displacement/volume⁶ 140 kg/412 litre
Speed³ 7.4/9.8 km/h
Prismatic coefficient 0.52
Wetted surface 1.64 m²
Drag⁴ 1.8/3.95 kp
Stability⁵ 4/5 (initial/secondary stability)
Intended use en kajak för fiske, friluftsmåleri, jakt, eller spontana utflykter ut i åar, sjösystem eller skärgårdar.

* These dimensions can be adapted to suit personal needs or wishes.
** Depending on type of wood, equipment, care with epoxy usage, sanding etc. etc.
*** The speed numbers are based on mathematical standard formulas (175 lb paddler + 30 lb carco weight) and corrected from the kayaks actual performance om trials, on tours and in races.
⁴ Calculated resistance in 4 and 5 knots (at nominal load capacity).
⁵ Initial stability and secondary stability on a subjective scale, where 1 is very tippy and 5 is very stable.
⁶ Displacement is kayak + paddler + load. Count off the kayak weight to get the load capacity.

Plans, Jack 14 SOT - 120 EUR Purchase

Comments

Ah-ha! I like it, Björn!

För att frigöra händerna, tror du en Hobie Mirage Drive skulle få plats?

https://www.hobieshop.se/till-hobie-mirage-drive.html

Jag ser i teorin inga problem med det. Naturligvis en del konstruktiv finurlighet för att anpassa för montageschakt (hobiekajakerna har generellt relativt stort avstånd mellan sittbrunnens botten och kajakens botten), fastsättning (hobiedreven är gjorda för montering i hobiekajaker och inget annat) etc – och ett roder. Drev med horisontell fena går att styra utan roder (genom att hålla kvar fenan i ytterläge några sekunder), men inte vertikal fena.

Du behöver fundera lite över balansen och tyngdpunktens läge också. Hobiekajakerrna är generellt bredare än Jack 14 (men deras webbsajt är mycket torftig med sådan information).

Mer om kajakers framdriving finns här...

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