The Return of Commercial Sail – UT Wind Challenger & Retracting Rigid Wing Sails

Early airplane wings were built of canvas stretched over a wooden frame, held together with wire rigging.  Modern airplane wings are built of aluminum and other metals.  The comparison to sails, masts and rigging on ships may not apply directly.  Nevertheless, the … Continue reading

The Return of Commercial Sail? Dyna-Rig Design in the News

Arthur Sewall, a shipbuilder, shipowner and industrialist from Bath Maine, is quoted near the turn of the 20th century, saying, “As long as the wind blows and water flows there will be sailing ships built and business to keep them … Continue reading

A New Generation of High-Tech Sailing Ships?

B9 Shipping and the Greenheart Project are both working to develop new high-tech sailing coasters.  B9 has in mind a 3,000 DWT three masted bulk carrier with automated square sails whereas the Greenheart Project envisions a much smaller fore and … Continue reading