Robert Cooper, of Savannah, GA, laminated the wood together just as it was done in the early days of flight with the use of homemade horsehide glue. Once bonded, the propeller was hand carved until each half matched. Then it was balanced by inserting weights into the center hub. Finished in 1997, the model propeller is 28”- long, 4”-wide, and 2”-high.
This scale model is based on the propeller used with a Bentley BR-2 rotary airplane engine in a World War I Sopwith Snipe airplane. It is designated a 27-25 propeller. The first number denotes the propeller’s length, and the second number is its pitch (inches the propeller travels through the air per revolution without a load).