Wednesday, April 20, 2011

Design 2186-C1 - IW 40

This fiberglass production yacht was built by the IW-Varvet AB shipyard of Sweden. Production ran from approximately 1977-1983.

Here are the plans.

An owner was kind enough to send us these images. Here are some interior views. Please note these images correspond with the general arrangement in the brochure as shown below, not the general arrangement as shown above.

Main Cabin

Convertible Settee


Nav Area

And finally here's a copy of a brochure. Double click for zoom.

Principal Dimensions
LOA 39'-6"
LWL 28'-6"
Beam 11'-5"
Draft 6'-3"
Displacement 16,660 lbs
Ballast 8,957 lbs
Sail Area 716 sq ft


  1. The plan near the top is not quite right: the bridge deck, cabin profile and windows are different. It might be an early design version that was modified later. The plans from the broshure seem right. The draft should be close to 7ft. Some hulls with home built interior have a different layout. Our IW40 has a direct entrance from the cockpit to the aft cabin, making getting down below much safer.

    Leo, owner IW40 Firefly, hull #6

    1. Updated website:

  2. the original leaflet is correct
    later versions have larger rig and deeper draft.
    there is some alternative interiors also.
    she is a beauty in rough seas.....take the gale more than the crew.