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PEREIRA/SCHIFFERER OSPREY II – N346JS

The Osprey II was designed by George Pereira as an answer to the demand for his Osprey I design in a two-place version with landing gear. George thought it would be possible to simply widen the hull a bit, tack on a landing gear, and keep people happy. As the design evolved further, it soon became evident that the Osprey II was an entirely new aircraft and had little in common with the Osprey I, other than a family resemblance.

The Osprey II hull was made of wood that was well varnished on the bottom and taken to a roofing company to be sprayed with polyurethane foam. Once the hull was foamed it was very easy to shape the hull bottom. About three hours of cutting and sanding the foam made it ready for fiber glassing. The bottom had several layers of glass cloth with the heaviest amount at the step. With this construction the hull ended up with a sandwich of plywood, foam, and fiberglass. The foam withstands heavy impact loads very well and insures against leaks even if the glass is punctured.

Polyester resin was used throughout the construction. The cabin and canopy were shaped from polyurethane foam and eventually fiber-glassed. The canopy opened from the nose, being hinged over the passengers’ heads. This allowed passengers and pilots to beach the aircraft and step out over the nose without getting wet. The Osprey II was originally powered by a Franklin Sport 4R engine, but when the R model was discontinued, George redesigned his Osprey II around the Lycoming 4 cylinder series since the engine mount is so important in a pusher configuration.

The Osprey II displayed steady performance gain as modifications and trim corrections were made. Flying off water in the Osprey II was much easier in many respects than land operation. Crosswinds were not a problem, as the Osprey II could be drifting sideways and it seemed to make little difference. Water take-offs and fast taxi were equally easy. The hardest part of the water work was learning to dock the aircraft, which took some time and finesse.

George made his plans available to the public, organizing them in the sequence in which the Osprey II should be constructed. However, he did not make the Osprey II into a kit, as he designed it to be built, in its entirety, in a home workshop with no molds required. With every set of plans sold, George also recommended an EAA membership, as he was himself a member.

John Schifferer built his own Osprey II, which he donated to EAA in 1983.

Pereira-Schifferer Osprey II Pereira-Schifferer Osprey II

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