Sisu FAQ
Sisu history
The Sisu boats were built in the 1970s and 80s by Sisu Boat Inc. of Portsmouth, NH. The hull designs were created by Royal Lowell. They were very popular, and many are still on the water today.
The term "sisu" refers to a common Finnish concept of "stoic toughness" or perseverance. The literal translation is "having guts" - basically, the spirit of will that survives and enjoys the harsh winters of Scandinavia. 'The Power of a Finn is the Sisu Within'
Sisu closed its doors in 1988, and the hulls migrated to various builders. The Lowell Brothers are now proud to once again offer the Sisu 22 and Sisu 26, as our Lowell 22 and 26.
SISU PARTS
Most of the companies that provided components for Sisu boats have since gone out of business. We use Hamilton Marine as a great source for boat components.
SISU WINDOWS
The Sisu's windows were originally made of plexiglass, which has a tendancy to get cloudy. Replacement can be tricky because the windows often have a 2" corner radius, whereas 3" is now the industry standard.
Here are two companies that we know of who make windows that will fit for Sisu replacements. (Note: We don't recommend plastic windows.)
Bomon
www.bomon.com
Excellent aluminum-frame windows.
Ocean Dynamics
www.oceandynamics.com
We have not personally worked with this company, but have heard recommendations from others about them.
When ordering new windows, do a perimeter measurement and two diagonal measurements. (See the bottom of this page for an example: www.bomon.com/replacement.htm)
SISU REPOWERING
We have had good results with full-length spray rails for the Sisu round chine boats - this gives extra stability at higher speeds, while maintaining the smooth ride.
