The Blohm & Voss Ha 142 was a German four-engined long-distance monoplane, developed to meet a Luft Hansa requirement for its transatlantic airmail service. The first of several prototypes flew on 11 October 1938 and they saw some service in other roles during the Second World War.
The Aerosport Rail is an American minimalist ultralight aircraft, designed by Harris Woods and built by Aerosport Inc. The aircraft was first flown on 14 November 1970.
The Buhl LA-1 Bull Pup was a light sports airplane developed in the United States in 1930. It was a mid-wing wire-braced monoplane with fixed tailskid undercarriage and an open cockpit for the pilot. Buhl developed the Bull Pup as a cheap aircraft through which the company hoped to remain in business as the onset of the Great Depression was felt. However, as the economic situation worsened, it became evident that there was no demand for even such a basic aircraft; when production ceased in 1932, all aircraft still in stock were sold off at half price as the company folded.
The Edo OSE was a 1940s American single-seat multi-role floatplane designed and manufactured by the Edo Aircraft Corporation.
The Curtiss Eagle was an airliner produced in small numbers in the United States shortly after World War I. The aircraft was a conventional biplane with three-bay, unstaggered wings of equal span. The fuselage was a very advanced design for its day, incorporating careful streamlining of its monocoque structure, and offering the crew as well as the passengers a fully enclosed cabin. The Eagle is sometimes named as the first American tri-motor aircraft; however Curtiss' own Model H flying boat flew with three engines for a time in 1914 before being converted back to twin-engine configuration.
The Curtiss Model R was a utility aircraft produced for the United States Army and Navy during World War I. It was a conventional, two-bay biplane with slightly staggered wings of unequal span. The aircraft was provided with two open cockpits in tandem and fixed tailskid undercarriage, but many were built for the Navy with twin floats replacing the wheels. During the course of the war, Model Rs were used for general liaison and communication duties, as well for observation, training, and as air ambulances. In practice, the Curtiss powerplants supplied with these aircraft proved insufficient and were mostly replaced with Liberty engines. The Navy's Model R-3 floatplane had extended-span, three-bay wings, and was intended for use as a torpedo bomber. Some of these were later fitted with wheeled undercarriage and transferred to the Army as bombers under the designation Model R-9.
The Savoia-Marchetti S.66 was a 1930s Italian twin-hull flying boat designed and built by Savoia-Marchetti as an enlarged development of the S.55.
The Fokker T.IV was a Dutch torpedo bomber/maritime reconnaissance floatplane of the 1920s and 1930s. First flying in 1927, it served with the Dutch Naval Aviation Service in the Dutch East Indies until the remaining aircraft were destroyed during the Japanese invasion in 1942.
The Martin T4M was an American torpedo bomber of the 1920s. A development by the Glenn L. Martin Company of their earlier Martin T3M, and, like it a single-engined biplane, the T4M served as the standard torpedo bomber aboard the aircraft carriers of the United States Navy through much of the 1930s.
The Gatard Statoplan AG 02 Poussin was a light, single-seat sports airplane developed in France in the late 1950s and marketed for homebuilding. In layout, it was a low-wing cantilever monoplane of short-coupled design with fixed tailwheel undercarriage. Construction was a plywood-covered wooden structure throughout, and the cockpit was enclosed by a large perspex bubble canopy. The variable-incidence horizontal stabiliser was fitted with small endplates to provide extra directional stability but there were no separate elevators.
The Osprey Osprey 2, also known as the Pereira Osprey 2 after its designer, is an amphibious sport aircraft designed for homebuilding. Plans have been sold since the mid-1970s. George Pereira designed the Osprey 2 to address the two most frequent criticisms of his Osprey I aircraft: its lack of a passenger seat and its inability to operate from dry land. An exercise that began as a series of modifications to the original design in January 1972 eventually turned into a complete redesign of the aircraft, with the resulting Osprey 2 flying in April 1973.
The Parker Teenie Two is a single-seat, single-engine sport aircraft first built in the United States in 1969 and marketed for homebuilding. It is a low-wing, cantilever monoplane of conventional configuration and fixed tricycle undercarriage. The cockpit was designed to be left open, but plans for a canopy to enclose it were made available, the use of which would increase the top speed of the aircraft. The Teenie Two was specifically designed to use a converted Volkswagen automobile engine for power. The outer wing panels can be detached for transport or storage.
The Pazmany PL-4A is a single-seat, single-engine sport aircraft developed in the United States and first flown in 1972. It is marketed for homebuilding from plans, and 686 sets had sold by 1985. The PL-4A is a conventional, low-wing cantilever monoplane with an enclosed cabin and fixed, tailwheel undercarriage. The design features a T-tail, chosen to facilitate folding the wings. Construction throughout is of metal, using standard extruded sections for the longerons and pop rivets as the basic fastener. The standard powerplant is a Volkswagen air-cooled engine of 60 hp (45 kW) Construction time is estimated to be around 1,000–1,500 hours.
The PDQ Aircraft Products PDQ-2 is a very basic light aircraft originally built in 1973 in the United States, and marketed as plans for a homebuilt aircraft. It was a minimalist design, consisting of aluminum alloy tubes carrying the pilot's seat, a set of monoplane wings and a T-tail. The pilot's position was fully exposed at the front of the aircraft. Power is provided by a single engine mounted pusher-fashion on a pylon above the wings. Originally, this was a Rockwell JLO snowmobile engine, but Ison revised the design to use a converted Volkswagen engine, due to a lack of availability of the first choice of engine. The heavier Volkswagen engine required an increase in structural strength, and the design was revised accordingly. The wings have wooden spars with ribs, and skin of polyurethane foam, all coated in epoxy resin. Fixed, tricycle undercarriage was fitted.
The Piel CP.80 Zephir , Piel CP.801 and Piel CP.802 are racing aircraft developed in France in the 1970s and marketed for homebuilding. They are compact, single-seat, single-engine monoplanes with low, cantilever wings.
The Piel CP.500 was a light aircraft of unusual configuration designed in France in the 1970s with the intention of marketing it for homebuilding. This did not transpire, however, and no prototype was actually built. It was a tandem wing design, somewhat reminiscent of the Mignet Pou-du-Ciel but considerably larger. Also, unlike the Pou-du-Ciel's unusual control system, the CP.500's pitch and roll control was to come from more conventional elevons mounted on the rear wing. The rear wing was also to carry endplate-style fins and rudders. Twin engines were to be mounted in push-pull fashion at the nose and tail ends of the fuselage, with the aircraft capable of single-engine operation in case of emergency. Two seats were to be provided at the front of the fully enclosed cabin, with a bench seat for three passengers behind them, plus an optional seat for a sixth occupant behind this. The undercarriage was to be of fixed, tricycle configuration. Construction was originally planned to be of wood, with engine cowlings and wingtips of composite construction. However, as development progressed, Piel considered metal as the main construction material.
The Rand Robinson KR-1 is a single-seat, single-engine sport aircraft designed in the United States in the early 1970s and marketed for homebuilding. A two-seat version is marketed as the KR-2. It is a low-wing cantilever monoplane of conventional design with an enclosed cockpit and tailwheel undercarriage. As originally designed, the main undercarriage units of the KR-1 and basic KR-2 were manually retractable, folding backwards into the wings, while the KR-2T tandem-seat version had fixed tricycle undercarriage. However, some builders choose fixed tailwheel or even fixed tricycle undercarriage for KR-1s and KR-2s.
The Beecraft Queen Bee was an American V-tailed four-seat cabin monoplane, designed and built by Bee Aviation Associates (Beecraft).
The Sikorsky S-41 was an amphibious flying boat airliner produced in the United States in the early 1930s. Essentially a scaled-up monoplane version of the Sikorsky S-38 biplane flying boat, Pan Am operated the type on routes in the Caribbean, South America, and between Boston and Halifax.
The Smith DSA-1 Miniplane is a single-seat, single-engine sport aircraft designed in the United States in the 1950s and marketed for home building.
