OMCKRA Race Craft Groupings
OMCKRA maintains a standard specifications policy to promote fairness in the sport. Boat styles/types may be grouped into one class. For example, depending on measurements, the ICF K1 is grouped with some Surfski into the HPK (high performance kayak) class.
Identifying Racing Craft
Boat specifications - info on how to identify classes. These and other boat styles are welcome in Marathon races.
C1 USCA (Marathon racing)
OMCKRA specifications for this class read as: Hull specifications shall conform to current USCA specification in effect. In addition, OMCKRA recommends that tarps and bailers be permissible.
Examples with Manufacturers Descriptions
J-203 - Crozier design sold by Wenohah
We think it is more like 23 lbs. I found the following description of this boat. Click to confirm at manufactures site: 29 lbs; length: 18'6"; height (bow, center, stern) 16/11.75/12; width at the 4" waterline 32"
Competition Cruiser - Diller design sold by Savage River
I found the following description of this boat. Click to confirm at manufactures site: 29 lbs; length: 18'6"; height (bow, center, stern) 16”/12”/12” ; width at the 4" waterline 31"; max width: 32"
C2 Pro (Marathon racing)
OMCKRA specifications read: Maximum overall length 18 feet 6 inches; minimum width 27 inches, 3 inches above the bottom, when measured within 12 inches of the longitudinal centre, not counting keels, at the widest part of the canoe. Minimum width at the gunwales, skin to skin, shall be 33 inches, within 12 inches of the longitudinal centre. Minimum 15-inch-high bow measured from the bottom baseline.
Examples with Manufacturers Descriptions
JD Pro - sold by Savage River
Manufactures description: 30 lbs; length: 18'6"; max width: 33"; height (bow, center, stern) 15/11/11; width at the 3" waterline 27"
Diller Pro - sold by Savage River; design by Diller
Manufactures description: 33 lbs; length: 18'6"; height (bow, center, stern) check with manufacturer; width at the 3" waterline 27"
Educational note: the bow on the Diller Pro looks more rounded than the JD Pro.
Jensen V1-Pro - sold by Wenonah - design by Jensen
Manufactures description: 33 lbs; length: 18'6"; height (bow, center, stern) 15/11/11; width at the 4" waterline 27"
Jensen V1-A (Mens or Mixer) - sold by Wenonah - design by Jensen
Manufactures description: 33 lbs; length: 18'6"; height (bow, center, stern) 16/11.5/11.5; gunwale width 29"; width at the 4" waterline 32" - comes in V1-A Men's or Mixer which has a wider stern so that a lightweight paddler can move further back to trim the canoe.
More from Manufacturer
Educational note: This boat is considered to be out of date. It is slower than the C2 Pro, being wider at the water line, but narrow at the gunwale so not stable enough for the stock class. The stern is lower on the V1A than on the Stock class canoes. The V1A can race in the C2 Pro class in OMCKRA. Initial stability is better than in a Pro boat but it has less final stability than the C2 Pro designs.
Following from paddling.com. [Initial stability is what you feel when you first get into the boat. In a boat with great initial stability, you can stand up and walk around. It takes a lot of effort to flip this boat on flatwater. It resists leaning until it reaches a point of no return, beyond which it quickly upsets without much warning. That's because secondary stability was sacrificed for the stable platform of initial stability. Secondary stability refers to how the boat behaves as it tilts.]
C1 Stock (Marathon)
Stock C1 (one-person canoe)
OMCKRA SPECS FOR THIS CLASS READ AS: Length: Maximum of 17’2” / Minimum 15.’ Width: No minimum / No maximum. Canoes with concave hulls are not permitted. Pro-class or modified boats that are specifically designed for flat-water racing are not permitted. Skegs or rudders are not permitted.
Examples with Manufacturers Descriptions
Slingshot 202 – H2O Paddlesports
C2 Stock (Marathon)
OMCKRA specifications read: Length; maximum of 18’6”; Width: minimum of 14.4 per cent of length at the four (4) inch waterline, (i.e. 32 inches for 18’6” length, 29.4 for 17’ length); Depth: Minimum at bow 16 inches, centre 12 inches, stern 16 inches.
ICF C1 and ICF C2 (Canoe)
OMCKRA specifications read: Dimensions and weights sanctioned by the International Canoe Federation for Marathon are to take precedence. ICF C1s are to be no more than 520 cm long and weigh no less than 10 kg. ICF C2s to be no more than 650 cm long and weigh no less than 14 kg
Examples with Manufacturers Descriptions
ICF C1 (Canoe)
Manufactures description: Length 17' (520 cm); Width 21.65" (55 cm); Depth 12.25" (31 cm); Weight 32 to 35 lbs (14.5 to 16 kg); model: Karina; sold by Simon River
ICF C2 (Canoe)
Manufactures description: Length 21.5' (650 cm); Width 16"" (41 cm); Depth 113" (33 cm); Weight 39 to 42 lbs (17.7 to 20 kg); model: Hydra; sold by Simon River
ICF K1 and ICF K2 (Kayak)
OMCKRA specifications read: Dimensions and weights sanctioned by the International Canoe Federation for Marathon are to take precedence. ICF K1s are to be a maximum of 520 cm long and weigh a minimum of 8 kg. ICF K2s to be no longer than 650 cm and weigh no less than 12 kg.
Recreational Touring Kayak
Kayak (non-ICF) - Touring class
Any of the following non-ICF Kayak specifications may be used by race organizers: Kayak KA must meet specs for down-river single seaters, delta hulls included: Length no more than 14 feet 9 inches (4.5 meters). Width not less than 23 5/8 inches (60 centimeters). No steering devices allowed. Touring kayaks to include recreational, sea and stock kayaks. No specifications are laid out.
Recreational Tandem Canoe
Recreational Tandem (2 person) Canoe
Any non-racing canoe, at the discretion of the race organizer, 17 feet long or less with a minimum width of 32 inches at the 4-inch waterline is acceptable. (Dec. 1, 2007)
Outrigger
The following classes are recommended to race organizers hosting OMCRA races.
OC1 (One-person outrigger canoe, no specifications)
OC2 (Two-person outrigger canoe, no specifications.)
OC6 (Six-person outrigger canoe, no specifications.)
