A never-completed 250 foot rigid airship, 24 feet in diameter, under construction during 1909-1910 by the Preble-Rekar Airship Company of Portland, Oregon.
Its dimensions were to have been 250 feet in length and 25 feet in diameter. Apparently bankrolled by Oregon investors, the Preble-Rekar Airship Company of C. H. Preble and J. J. Rekar (Rekar of San Francisco, CA), set up shop in Portland. The structure was made of spruce and no nails or bolts were used.
All Aero 