The Dahlfin II is being offered for sale. Many Great Lakes cruising sailors will recognize Dahlfin II as featured in the definitive Lake Superior cruising guide The Superior Way, by Bonnie Dahl, and in other sailing and cruising publications. Ron and Bonnie Dahl have owned her since she was new and have decided after many wonderful years of cruising aboard her it's time for a new owner to enjoy this sea tested cruising vessel. She's been very well maintained and extensively improved and upgraded by the Dahls to make her more capable, seaworthy and easily handled by a cruising couple. We encourage you to closely examine the many upgrades to better understand what makes her truly stand out.
For more information about the Dahlfin II or to schedule a showing please contact me anytime at:
All boaters think their boat has unique features. There are, however, several revisions and additions that set Dahlfin II apart from the standard Columbia 10.7 in design and structure.
- Dahlfin II is hull #14 of the first production of 15 hulls built to the high standard specs of the engineers. After this production Whittiker Yacht wanted to get the cost down so they cheapened the hull lay-up (cloth to resin ratio was much less) and many other things. Later the boat was sold to Hughes and then Aura, both Canadian companies. Each time the boat construction was further cheapened including putting in a headliner by Aura. The result is that being in the first production Dahlfin II was in many aspects built much stronger than subsequent 10.7’s on the market today.
- All windows have been replaced and are of different design. The standard 10.7 has 2
opening ports, Dahlfin II has 5 opening ports - one extra added in the quarter berth.
- The standard 10.7 has 2 opening hatches, Dahlfin II has 4 - 2 small opening hatches
added in the head and main cabin.
- The hull has an added fiberglass rubstrake with a stainless cap. This rubstrake prevents damage to the hull and can be easily repaired. This rubstrake along with the different windows changes the exterior appearance considerably
- The aft lower shroud chain plates were always a problem, they leaked. The original chain plates which were attached to internal plywood knees are now firmly attached inside to fore and aft stringers with stainless bars - and they no longer leak.
- The standard 10.7 has two 3” cowl vents, Dahlfin II has four 4” cowl vents with boxes
on deck. The amount of fresh air coming into the boat can be controlled from the inside.
- The single headstay has been replaced with a double forestay system, each with a
separate furler: 150 genoa, 115 blade. A permanent inner forestay with furler has been
added for the staysail. All furlers are Profurl. These systems mean easier sail
management and safety as all headsails can be set and furled from the cockpit.
- Custom made maststeps have been added on the mast to the masthead.
- Five deck prisms have been added to increase light below.
- All seacocks have been replaced (2014) with Appolo bronze ball valves.
- The original prop has been replaced with a 3 blade Max Prop, full feathering.
- The original engine, Yanmar 2QM20 - 22 hp, been upgraded (2004) to a newer/stronger Yanmar 3GM30F - 30 hp. Most 10.7’s on the market today have the smaller original engine. The Yanmar GM Series engines have a well deserved reputation for their reliability and serviceability.
- The mainsheet traveler on the standard 10.7 is mounted in the cockpit on the bridge
right in front of the companionway making it inconvenient to enter the cabin. On
Dahlfin II the traveler is mounted on the cabin top making the boom and mainsail easier
to control. The traveler is custom designed stainless steel.
- The original primary winches have been replaced with large Barient # 28 self-tailing
- Custom made stern davits have been added to safely and securely carry the dinghy.
Custom made motor crane as been added on the stern pulpit to raise the outboard motor.
- The original exterior teak handrails have been replaced with a stainless steel handrail
safety system with cars you can tether a safety harness to and move anywhere on the
- The entire boat has been insulated in the interior to the waterline including a removable
- All interior cabinets have louvered wood doors replacing the orginal plastic sliders on
the standard 10.7. These enable easier access and increased storage.
- To increase storage a number of interior cabinets have been added: 5 in the forecabin, 1 over the sink in the galley, 4 in the quarter berth. All have wood louvered doors.
Additional shelves have been added behind the main cabin settees.
- Additional tanks have been added for fuel and water increasing the fuel from 30 to 55
gallons, water from 60 to 85 gallons.
- A shower and sump tank have been added to the head. They are not on original 10.7s.
- Galley: two burner propane stove with oven replaces the original alcohol stove.
Compressor refrigeration (with freezer) has been added.
And so the list goes on. The point being that Dahlfin II is a completely different boat from other Columbia 10.7s that have been built or are on the market today. These changes and others are discussed at length in the two part article “The Evolution of a Cruising Boat”, published in the July/August 2006 and September/October 2006 issues of Good Old Boat Magazine. For a complete listing of all that comes with Dahlfin II see “Systems and Equipment List”.
All glass with full length stringers along the inside of the hull.
Custom molded rub strake along the hull topsides with stainless cap.
Fully insulated hull and headliner (except below the waterline)
Epoxy barrier coated bottom, 6 coats applied using Interlux 2000
Awlgripped hull topsides and deck
All windows and ports replaced - 5 opening ports
4 dorade vents 4" diameter
All stainless deck blocks (Garhauer)
Winches Barient #28 two speed primaries (self-tailing-oversized for easy sheeting)
Mast winches Lewmar #30 and #16, two speed
Cockpit winch Lewmar #40 and #43, two speed
Reefing winch Lewmar #43, two speed
Outboard motor crane with 6 part block & tackle
Kiwi-Grip applied to all non-skid areas on deck
All Exterior canvas is Sunbrella except for the Bimini top
Dodger with Stratoglass windows
Bimini can be used fully while under sail
Custom maststeps to masthead
Wind-speed masthead wand
Tri-color masthead running light fixture
Stainless boom vang
Mast mounted radar reflector
Raytheon 16 mile radar antenna
Two, line control adjustable whisker poles, mounted on mast or stowed on deck
All standing rigging is 5/16" 1x19 wire
YANMAR 3GM 30F (new in 2004) with many spare parts (3704 hours)
MAX-PROP 3 Blade Feathering Propeller with replacement zincs
New Injectors installed in 2014
100 amp alternator, plus spare
3 Injectors (spares)
Hoses, belts and filters, etc.
Raycor 500 primary fuel filter
NORTH Sails Mainsail with full battens, New in 2005, Mainsail Cover
NORTH Sails 150% Furling Genoa, W/Sunbrella Cover, New in 2007
NORTH Sails Inner Furling Foresail, New in 2013 on Pro-Furl furler W/Sunbrella Cover
NORTH Sails Lapper 7oz 110% W/Sunbrella Cover
Dutchman Mainsail Flaking System
Dahlfin II has been carefully rigged to make her easy to handle in all wind conditions.
With her duel furling headstays, and inner furling foresail, sails can be quickly and safely set from the security of the cockpit for all wind conditions and points of sail.
30 Amp shorepower cord
Ample Power 12 Volt Panel
2 Solar panels mounted on stern dinghy davits
2 VHF radios, one at Nav. station and one at the cockpit pedestal
SIGNET Knotmeter, Log, Depthmeter & Windspeed
RAYTHEON 16 mile radar
ALPHA below decks autopilot with upgrades and complete back-up
GARMIN chart plotter with Great Lakes chart chips
Magnavox GPS, large screen
Single Sideband long range radio (SGC) w/antenna tuner & ground plane
1000 Watt inverter - plus spare inverter
Electric bilge pumps (3)
Manual bilge pump operable from cockpit
DVD Blue-Ray Player
Fold-away 13" flat panel TV
XM Satellite Radio
AM-FM radio with CD player
Pioneer speakers (2)
100 amp high output alternator on engine-plus spare
4 House batteries - 100 amp AGM
1 Starting battery Group 24 AGM
Fuel Tanks: 55 gallons in two tanks with electric fuel level gauges on both
Water Tanks: 60 gallon tank plus 25 gallon tank portside
Waste Holding Tank: 25 gallons
Shower Tanks and Shower Sump Tank (under cabin sole)
Simpson Lawrence electric windlass- 1000 watt motor
Custom Stainless steel bowsprit with dual anchor rollers/holders for primary anchors
Bruce 33# anchor w/140' 5/16" (G-4) chain, plus 100' of 5/8" nylon rode
Delta 35# anchor w/100' of 5/16" (G-4) chain, plus 100' of 5/8" nylon rode
1 Fortress model F-37 aluminum anchor with 125'' of 5/8" nylon rode
1 Danforth 12# anchor w/25' chain and 100' of 3/8" nylon rode
1 Kellet 25# anchor
Holding plate refrigeration/freezer with spillover box for general refrigeration
Fridge uses Sanden engine driven compressor
Top loaded box is insulated with 4" of closed cell foam
Fridge uses 134a gas and was totally rebuilt in 2013 (the refrigeration system has not been recharged but replacement gas is included)
Remote wireless temperature sensors (2) for freezer
FORCE 10 propane BBQ mounted on stern with Sunbrella cover (clean & ready to use)
Two vented and sealed propane tank lockers in the cockpit
2, 20 lb. aluminum propane tanks that are certified
Stainless steel propane range with oven (new in 2011)
Electric solenoid propane tank shut-offs
Wilcox manual marine head with spare rebuild parts
Complete replacement Wilcox head (still in the box)
Hand held shower in head space uses electric pump
All lights including main cabin lights are LED
3 kerosene lamps
Model 30-D, 11,000 BTU, cabin heater from Scan Sailing (owners use K-1 kerosene rather than diesel fuel, producing "no soot and nice clean heat")
5, HELLA 12 volt fans in main cabin, fore cabin and engine compartment
Custom cockpit cushions with closed cell foam and covered with Sunbrella
Full cockpit sole grate and shower grate in head (wood)
Stern freshwater shower
USCG required safety gear
AVON offshore 4 person life-raft stored on deck in fiberglass canister, Hypalon fabric with double floor for cold water use
Custom stainless steel cabin top safety system with movable cars for use with safety harness and teather
Lifesling with man overboard pole
2 Horseshoe type throwable life preservers
Throw-line on stern
Delta drogue (sea anchor) under stern seat
Radar reflector mounted on mast
Lifejacket stowage under port cockpit locker
Custom steel storage cradle
Teak & holly cabin sole
Custom quarter berth and cabinets
Ceramic tile counter tops throughout galley
Ship's clock, temp
Stern boarding ladder
Water filters on water system
Extra cabinets and storage added throughout the boat
12V deck washdown pump
7 winch handles
5 fenders 10" x 32" with Sunbrella covers
4 docklines 5/8" yacht braid w/snubbers
2 Fire extinquishers
34475 Port Superior Road
PO Box 502
Bayfield, WI 54814