Name: Harken's DN Iceboat Deck Layout
Brand: Pacific Sailboat Supply
SKU: 102351-1
Price: 41.95 USD
Availability: InStock

Harken's DN Iceboat Sailboat Deck Layout and setup with blocks, tracks, and traveler cars.

Class History

Iceboating
With speeds hitting 50-100+ mph and your body suspended mere inches over the ice, iceboating is the fastest winter sport and one of the most intense sailing experiences there is. Speed generates more speed in iceboats—while "soft water" yachts eventually succumb to hull drag, nearly frictionless iceboats can use apparent wind to reach speeds 2 to 4 times the true wind.

The DN Iceboat
The DN, the smallest iceboat at 12 feet but the largest class, was first crafted by enthusiasts in the Detroit News' wood shop after it won the paper's 1936 design contest. Most of the 2000 members of the class build their own DN's, lending the boats to significant experimentation within the rules.

Mainsheet

The tapered mainsheet runs from a ratchet and two 75 mm Carbos to a 4:1 purchase. When building speed, the boom can be pulled tight against the skipper's shoulder because the purchase uses low-profile Carbo T2s and small, recessed boom blocks.

The Carbo Ratchets provide up to 15:1 holding power without compromising easing ability or chewing up lines.

Mainsheet Traveler

Fore-aft travelers with pinstop lead cars make it easy to adjust the sail. Pulling the cars forward pushes the boom into the mast, rotating the spar for a deeper pocket. Moving cars aft flattens the sail for speed in the upper wind range.

-Information courtesy from Harken

Mfg No.	Description	Sheave Diameter	Length	Max Line Diameter	Max Working Load	Breaking Load	Weight
2149	T2 Single^A	1-9/16" (40mm)	2-1/4" (57mm)	3/8" (10mm)	485 Lbs (220kg)	1,200 Lbs (544kg)	0.9 oz. (25g)

Mfg No.	Description	Sheave Diameter	Length	Max Line Diameter	Max Working Load	Breaking Load	Weight
2660	Single Carbo Airblock	2-15/16" (75mm)	5-3/8" (137mm)	9/16" (14mm)	1213 Lbs (550kg)	3,638Lbs (1650kg)	6.9 oz. (195g)

Mfg No.	Description	Sheave Diameter	Length	Shackle Pin Dia.	Max Line Diameter	MWL¹	Breaking Load	Weight²
2670	Single Carbo Ratchet Airblock	2-15/16" (75mm)	5-3/8" (137mm)	1/4" (6mm)	7/16" (12mm)	750 Lbs (341kg)	3,000 Lbs (1,361kg)	8.0 oz (227g)

Mfg No.	Maximum Working Load	Breaking Load	Length	Width	Height	Weight
450	350 Lbs (159kg)	700 Lbs (318kg)	2-5/8" (67mm)	15/16" (23mm)	1-1/16" (27mm)	2 oz. (55g)

Mfg No.

Fasteners

Mounting Hole Spacing

Length

First Hole

Weight

453.12

#10 FH in
5FH mm

76mm

0.3m

1-3/8" (34mm)

1.5 oz.
(43g)

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