Boat Data

The Endurance 44 was designed by Peter A. Ibold,  an American designer who later moved to France. His design career became firmly established when his EDURANCE 35 won a design contest sponsored by International Amateur Boat Building Society.

Endurance designs have been built by many different yards and individuals around the world using a wide variety of construction materials. The 44 has been variously configured as a ketch, sloop or cutter rig.

Hull Type:   Modified Full Keel   Displacement: 17,237kg
Rig: Cutter   Ballast: 7,257kg
LOA 13.41m   Ballast/Displacement: 42.11
LWL 11.28m   Comfort Ratio*: 49.33
Beam 3.96m   Capsize Screening Formula**: 1.55
Max. Draft 2.08m   Sail Area (Total): 68s q.m
First Built 1972   Mast Height from DWL 15.85m

*Comfort Ratio:
This is a ratio created by Ted Brewer as a measure of motion comfort. It provides a reasonable comparison between yachts of similar size and type. It is based on the fact that the faster the motion the more upsetting it is to the average person. Consider, though, that the typical summertime coastal cruiser will rarely encounter the wind and seas that an ocean going yacht will meet.

  • Numbers below 20 indicate a lightweight racing boat;
  • 20 to 30 indicates a coastal cruiser;
  • 30 to 40 indicates a moderate bluewater cruising boat;
  • 40 to 50 indicates a heavy bluewater boat;
  • over 50 indicates an extremely heavy bluewater boat.
    Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam^1.33), where displacement is expressed in pounds, and length is expressed in feet.

**Capsize Screening Formula:
Designed to determine if a boat has blue water capability. The CSF compares beam with displacement since excess beam contributes to capsize and heavy displacement reduces capsize vulnerability. The boat is better suited for ocean passages (vs coastal cruising) if the result of the calculation is 2.0 or less. The lower the better.
CSF = Beam/Disp (cubic ft)^.333. The displacement in cubic feet can be found by dividing the displacement in pounds by 64.