02/28/2014. Remarks by Walter van Tilborg: "The W-7 Special was another homebuilt aircraft of Miles Westfall of Oklahoma City, Oklahoma, USA, who previously had built six other light planes, the first in 1930 at the age of 31, a Church Midwing.

His negative stagger W-7 biplane, of original design, first flew in September 1973, after a construction period of five years and was initially fitted with an 125 hp Lycoming O-290-G engine. After it was purchased by Eura Rogers, it was completely overhauled and also re-engined with a more powerful 150 hp Lycoming O-320 and re-flown on October 14, 1992.

A second example, pictured above, was built by Brad J.H. Poling of Elk Grove, California, and although registered N99BP on September 8, 1998, it was not completed until 2001, after eight years of construction. This aircraft has an 150 hp O-320-E2C engine, and is very similar to N32E except for the N-shaped (instead of single) wing struts."

Span: 23 ft 10.5 in (7.28 m)
Length: 21 ft 2 in (6.45 m)
Height: 6 ft 5 in (1.96 m)
Max speed: 140 mph (225 kmh)
Cruise speed: 120 mph (193 kmh)
Climb: 850 ft (259 m)/min
Service ceiling: 17,500 ft (5,334 m)
Range: 500 mls (805 km)