The CAP-1 Planalto was a military trainer aircraft built in Brazil during World War II . It was a low-wing cantilever monoplane with fixed tailwheel undercarriage that accommodated the pilot and instructor in tandem open cockpits . The project had been initiated by Instituto de Pesquisas Tecnológicas (IPT) 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.
8-771: The CAP-3 replaced the CAP-1's Franklin 4AC engine with a de Havilland Gipsy with double its power, 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. Data from Jane's All The World's Aircraft 1951–52 General characteristics Performance Franklin 4AC The Franklin Engine Company
16-652: Is pending at EASA . New Franklin Engines built By Franklin Aircraft Engines Sp. z o.o. are available in the United States from Franklin aircraft engines, Inc. of Fort Collins Colorado. In addition, there are a number of restoration and service options for "legacy" or rather original US built franklin engines. Because of inherent engine balance, size , power to weight, and comparative cost to competing engines: franklins are popular choices for experimental aircraft and have
24-531: The Aero-Flight Streak , Bartlett Zephyr , Bell 47 , Bellanca Cruisair , Brantly B-1 , Goodyear Duck , H-23 Raven , Hiller 360 , Piper J-3F Cub , Seibel S-4 , Sikorsky S-52 , Stinson Voyager , Taylorcraft 15 , Temco TE-1B , and the YT-35 Buckaroo . Air-cooled Motors was purchased by Republic Aviation Company in 1945 to produce engines for its Republic Seabee light amphibious aircraft. After
32-473: The company and moved it to Rzeszów , first under the name PZL-Franklin and later PZL-F. The company is now called Franklin Aircraft Engines Sp. z o.o. with the address ul. Chełmińska 208 in 86-300 Grudziądz city in Poland. At Aero Friedrichshafen 2016 the company had new engines on display. The innovations include modifications to the type certificate of the 6A-350; the approval for MOGAS , as well as fuel injection
40-555: The company was purchased by a group of ex-employees and renamed Air-cooled Motors in 1937. While the company kept the name of "Air-cooled Motors," its engines continued to be marketed under the Franklin name. Engineers Carl Doman and Ed Marks kept the company alive through the depression by manufacturing air-cooled truck and industrial engines. During World War II Air-cooled Motors was very successful producing helicopter and airplane engines. Several aircraft carried its engines, including
48-535: The time Air-cooled Motors had held over 65% of postwar U.S. aviation engine production contracts. As a result of the shift, when the Tucker Car Corporation failed amidst allegations of stock fraud, Air-cooled nearly failed with it. Tucker and the Tucker family owned the firm until 1961, when it was sold to Aero Industries, which restored the name Franklin Engine Company. In 1975 the government of Poland bought
56-472: The war, demand for the engines dropped dramatically and Republic was unsure of the company's future. In 1947 Air-cooled Motors was purchased for $ 1.8 million by the Tucker Car Corporation to produce an engine for the 1948 Tucker Sedan . After the purchase, Tucker cancelled all of the company's aircraft contracts so that its resources could be focused on making automotive engines for the Tucker. At
64-662: Was an American manufacturer of aircraft engines . Its designs were used primarily in the civilian market, both in fixed wing and helicopter designs. It was briefly directed towards automobile engines as part of the Tucker Car Corporation, returning to aviation when that company failed. The company was later purchased by the Government of Poland. The firm began as the H. H. Franklin Co. in 1902 in Syracuse, New York , US, to produce Franklin air-cooled automobiles . Barely surviving bankruptcy in 1933,
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