Apostle Islands Windsled and
Aviation Museum Inc.


WINDMARK
A division of BRUMAR
Mark Schulte
Blaine, Minnesota
715-786-2828

Known as the makers of
ICE ANGEL
"The Emergency Rescue Windsled for the future"

WINDMARK

Now the maker of...
Madeline Island's     Passenger Windsled
WINDMARK     ICE ANGEL IV


SPECIFICATIONS:
Hull Length ...... 26'
Length Overall ...... 28' 3"
Hull Width ...... 13' 5"
Hull Height ...... 26"
Windsled Height ...... 10' 8"
Hull Construction ...... 1/8" Aluminum double layered hull
Aluminum Type ...... Heat Treated Alloy (dent resistant)
Hull Outer Bottom Coating ...... U.H.M.W. Plastic
Rudder ...... 4 - Aluminum foam core rudders
Total Rudder Surface Area ...... 52 sq. ft.
Heated Enclosed Cabin ...... 1,062 cubic feet
2 - Radiator type heaters
Seating ...... 27 Persons including operator
Engines ...... 2 - 502 Fuel Injected Chevrolet 520 H.P.
Propellers ...... 2 - 8 blade carbon fiber propellers
Drive Unit ...... "Eakins" Belt Drive 2:1 reduction


Ice Angel IV

     Windsled controls include G.P.S., Marine radio, Radar, Duel engine throttles, Duel engine gauges, Duel brake control, Compass and light switches.


Ice Angel IV

     Chevrolet fuel injection 502 /520 h.p. engines Black hoses carry hot engine coolant to heaters at rear of enclosed cabin.


Ice Angel IV

     Aluminum fuel tanks can be seen under engines.


Ice Angel IV

     Rear view shows propellers and aluminum rudders. S. Steel mesh was placed on sides and rear of engine area.


Ice Angel IV

     Interior view of cabin, aluminum housing with round black object is one of the cabin heaters Heaters are nothing more then radiators with 12 volt fans, when heat is required engine coolant is redirected from the radiators mounted above the engines to heaters.


Ice Angel IV

     Note the hinged steps on bow for forward two doors Cabin also includes passenger doors on each side and additional openings on sides for freight and stretchers. Cabin offers excellent visibility comfort and warmth for operator and passengers.



ICE ANGEL IV
Under Construction

Ice Angel IV

     Hull sections are stamped out and laid on the shop floor.


Ice Angel IV

     The next step is to weld together the two aluminum layers making up the double hull.


Ice Angel IV

     A T.I.G. welder was used for all of the aluminum welds on the windsled. The quality of workmanship on the hull was beyond excellent.


Ice Angel IV

    


Ice Angel IV

     Photos show owner Mark Shulte explaining the hull construction to Elmer Nelson.


Ice Angel IV

     Dismantled belt drive units. 2:1 reduction with toothed belt.


Ice Angel IV

     Three of the four aluminum rudders used on the windsled.


Ice Angel IV

     Mark taking the time to explain the construction of the composite propeller to Island resident Gary Russell. Gary is a member of the Winter Transportation Committee.


Ice Angel IV

     Photo shows the hull almost complete.


Ice Angel IV

     Photo shows one of the rear wheels. One of the requirements in the contract was a breaking system and the ability to trailer the windsled. Windmark mounted wheels that could be hydraulically operated with electric breaks and studded tires. They also constructed a removable hitch that could be mounted to the bow when the sled needed to be moved, just lower the wheels, connect the hitch and the sled becomes a trailer.


Ice Angel IV

     That's me testing out the operators seat.


Ice Angel IV

     Side view of the port engine on its mounts. Note the large black housing for the belt drive between the engine and propeller.


Ice Angel IV

     Burke Henry, La Pointe Town Chairman tries out the steps that will lead to one of the forward doors.


Ice Angel IV

     Once a month our Winter Transportation Committee members would drive to Blaine MN. to look over the sleds progress and discuss options. On this trip Island summer resident and pilot, David Dalquist met us there to look over the project. David can be seen on the left, discussing the hull construction with Mark Shulte. Input from experts like David were always welcome.


Next Page
Ice Angel IV Delivered