Developed from the SL-90 Leshiy (first flown 1991) two-seat lightplane (first flown 1992) for pleasure flying and various other roles including training, survey, and agriculture.
Cruise: 81 kt / 93 mph / 150 kmh VNE: 135 kt / 155 mph / 250 kmh MTOW Weight: 840 kg / 1852 lbs Take-off distance (50ft obstacle): 920 ft / 280 m Landing distance (50ft obstacle): 720 ft / 220 m
The Technological Research Institute constituted the technical base on which Companhia Aeronáutica Paulista emerged. It was the Paulistinha project, passed on to Companhia Aeronáutica Paulista (CPA) together with the Planalto plane that generated the first royalties paid to the IPT.
The IPT-4 was designed by Clay Presgrave do Amaral of Instituto de Pesquisas Tecnológicas (IPT). The project had been initiated under the designation IPT-4 and although the design work had been contracted to CAP, IPT insisted on a wing profile of its own choosing that led to serious stability problems in the final product. It was a low-wing single-engine, for pilot training. The structure was made of wood, with plywood and canvas coverings. It was equipped with a 90-horsepower Franklin engine. The pilot and instructor in tandem open cockpits with fixed tailwheel undercarriage.
CAP-1
Clay do Amaral was part of the first board of the Companhia Aeronáutica Paulista, and IPT-4 became CAP-1, called Planalto.
CAP-1
First flying in June 1942 (prototype registration PP-TFW), successful test of the aircraft made it possible to sign a contract for the production of 20 aircraft. Since the institute did not have its own production facilities, the contract was handed over to Companhia Aeronautica Paulista (CAP). As a result, production aircraft were already produced under the designation CAP-1 Planalto.
CAP-1
The CAP-3 replaced the CAP-1’s Franklin 4AC engine with a de Havilland Gipsy with double its power in the mid-40s, but the stability problems remained unaddressed until CAP engineer Oswaldo Fadigas redesigned the wing in the CAP-6. The firm attempted to sell this latter type to the Ministry of Aeronautics, but succeeded only in selling conversion kits for the existing CAP-1s and -3s in the military’s inventory.
IPT-4 Planalto Engine: Franklin 4AC-199-B3, 90 hp Seats: 2
CAP-1 Engine: Franklin 4AC-199-B3, 67 kW (90 hp) Wingspan: 8.6 m (28 ft 3 in) Wing area: 12 sq.m (130 sq ft) Aspect ratio: 6.16:1 Length: 6.4 m (21 ft 0 in) Height: 2.6 m (8 ft 6 in) Empty weight: 335 kg (739 lb) Gross weight: 570 kg (1,257 lb) Cruise speed: 155 km/h (96 mph, 84 kn) Stall speed: 85 km/h (53 mph, 46 kn) Endurance: 2.5 hours Crew: 2
The IPT-3 glider, called Saracura, was a copy of the German Zoegling, intended for pilot training. The IPT-3 first flew in September 1942. It was a simple model, easy to handle.
Saracura = Saracura rail (Aramides saracura), bird from Latin America
The IPT-2 Aratinga was a glider produced by the Brazilian Instituto de Pesquisas Tecnologicas (IPT).
In the early 1940s, the Wood Research Department of the Instituto de Pesquisas Tecnologicas carried out intensive research into the use of indigenous woods in aircraft construction. The results were so promising that it was decided to set up its own aviation department. Its first director was Frede Abranches Brotero, who gathered a team of young engineers around him. Silvio de Oliveira was entrusted with the development of a new advanced glider and decided to revise the Grunau Baby, which was already used in Brazil.
The IPT-2 Aratinga was designed as a shoulder-wing aircraft with a conventional tail unit and a closed single-seat cockpit. A skid was under the hull. The machine was a wooden structure made from local woods, with the hull partly covered with plywood and partly covered with fabric. The wings were completely covered with fabric.
The only prototype IPT-2 Aratinga glider performed its maiden flight in July 1942.
The machine was later used by José Carlos de Barros Neiva, who developed it into a successful glider, the Neiva B Monitor.
Wing span: 10 m Wing area: 8.7 m² Length: 5.52 m Empty weight: 185 kg Minimum speed: 55 km / h Top speed: 130 km / h Seats: 1
In 1948, the Divison of Aeronautics of the IPT was created, originated from the Section of Aeronautics. The IPT designed a glider for primary instruction, the Gafanhoto, which was designated IPT-1 Gafanhoto (Grasshopper). A public-domain report was published by IPT containing the required information to build the glider.
To enable budding pilots to take their first steps, the Brazilian aero clubs needed a simple beginner glider. The IPT-1 Gafanhoto was the first aircraft designed by the newly established Instituto de Pesquisas Tecnologicas in São Paulo. The plan was to construct a simple plane that could be built from interested clubs themselves and could launch pulled by a winch or by a vehicle.
The gafanhoto was made entirely from local woods. The aircraft was a braced, braced high-wing aircraft. The fuselage, under which a single skid with rubber buffers was attached, consisted of a wooden frame and was clad with plywood. As with the SG 38 school glider, the pilot sat completely outdoors. The wings and the tail unit were a wooden structure covered with fabric. In the course of the flight tests it turned out that the wings had to be lowered, which led to the central struts being shortened by 20 cm.
First flown in 1942, the only machine built flew for several years, there was no series production.
Wing span: 10.35 m Wing area: 15.3 m² Length: 5.40 m Empty weight: 115 kg Max. Takeoff weight: 205 kg Minimum speed: 55 km / h Top speed: 120 km / h Seats: 1
The Ministry of Defense and the High Command of Vietnamese Air Force assigned the Institute for Aviation Military Technology to manufacture the HL-1 trainer in January 1981.
The HL-1 was designed based on the Pilatus P3 of Switzerland, Zlin 526 of former Czechoslovakia and Yak 18 of the former USSR.
First flown in 1996. The kit price for this twin pusher, including engines but not props or instruments, was US$23,500. An auxilary 20 US Gallon fuel tank was optional.
Engine: 2 x Rotax 503, 53 hp Top speed: 100 mph Cruise: 90 mph Stall: 40 mph Rate of climb: 1200 fpm Takeoff dist: 350 ft Landing dist: 150 ft Fuel capacity: 20 USG Empty weight: 650 lb Gross weight: 1400 lb Height: 6.9 ft Length: 19.4 ft Wing span: 31.5 ft Wing area: 155 sq.ft Seats: 2 Landing gear: nose wheel
The Sky Arrow is based on the earlier, remotely piloted drones, the Rondine. The development of the proven airframe (with certification originally funded by the Italian government) into a series of sporting sircraft was undertaken, producing the Sky Arrow. Guiseppe Archangeli made the first flight of the Sky Arrow from Ponzano, near Rome, on 13 July 1992. On that flight the prototype was fitted with the original metal wings, and it required only a 2 degree change in the tailplane incidence and minor mods to the controls. To meet the civilian market demands and regulations, the Sky Arrow has been modified from the original concept, with the initial design studies being wind tunnel tested at the University. The original metal wings have been substituted with an all composite version. The Sky Arrow 450T is a single-engine aircraft with vertically staggered tandem seats and dual controls. The instrument panel is located ahead of the front seat, and all the instruments are arranged to allow visibility from the rear seat, which is elevated somewhat in relation to the front seat. However, wing flaps, dual electronic switches and cabin heat can only be operated from the front seat. Operable from both seats are the brakes, trim, mixture control and carburettor air control.
The high wings are braced and rectangular in shape, and are made of a carbon-fibre sandwich with kevlar reinforcement, while the struts are constructed of alu¬minium and steel. The Sky Arrow 450 T wings are the as as the P92. The fuselage and empennage are made from carbon-fibre and kevlar. Landing gear is a fixed tricycle-type constructed of multilayered carbon-fibre and rubber shock absorbers for the nose gear. Load factor limits at a planned maximum all up weight of 450kg are +3.8G/-1.9G, with an ultimate strength of +7.6G/-3.8G before breakage occurs. The aeroplane is powered by an 80 hp four-stroke Rotax 912 engine, coupled by means of a reduction gear¬box with a ratio of 1:227 driving a two-bladed propeller. The airframe is fully manufactured with composite materials (kevlar and carbon sandwich). The high-wing tandem configuration provides excellent visibility of over 300degrees. The Sky Arrow is fitted with either a Rotax 912 or 914 engine. The aircraft is offered to homebuilder enthusiasts as a kit which meets the FAA 49/51 percent rule. The Sky Arrow kit is composed of 10 subkits which can be bought separately and incrementally.
The Sky Arrow 450 and 650 are the same aircraft available as certified and ultralight versions. Easily converted to wheels, floats or amphibian, the 650TC is certified to JAR/VLA standard. Both the 450T ULM and 650T kit are built to that standard.
In 2014, the Sky Arrow 600 was manufactured by Italian maker Magnaghi. Base price 2014: $87,000 (Sky Arrow); $100,000 (loaded with SkyView 10-inch EFIS for limited time).