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Pyromellitic dianhydride. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Pyromellitic dianhydride (PMDA) is an organic compound with the formula C 6 H 2 (C 2 O 3) 2. It is the double carboxylic acid anhydride that is used in the preparation of polyimide polymers such as Kapton.
27 August 1939. The Heinkel He 178 was an experimental aircraft designed and produced by the German aircraft manufacturer Heinkel. It was the world's first aircraft to fly using the thrust from a turbojet engine. The He 178 was developed to test the jet propulsion concept devised by the German engineer Hans von Ohain during the mid-1930s.
Phosphate conversion coating. Phosphate conversion coating is a chemical treatment applied to steel parts that creates a thin adhering layer of iron, zinc, or manganese phosphates, to achieve corrosion resistance, lubrication, or as a foundation for subsequent coatings or painting. [1][2][3] It is one of the most common types of conversion ...
Henkel AG & Co. KGaA, commonly known as Henkel, is a German multinational chemical and consumer goods company headquartered in Düsseldorf, Germany.Founded in 1876, the DAX company is organized into two globally operating business units (Consumer Brands, Adhesive Technologies) and is known for brands such as Loctite, Persil, [2] Fa, Pritt, Dial and Purex.
Number built. 138. History. Introduction date. 1939. First flight. August 1937. The Heinkel He 115 was an all-metal twin-engined military seaplane designed and produced by the German aircraft manufacturer Heinkel. Early on its flying history, the He 115 established several new international records for floatplanes.
The resulting Heinkel-Strahltriebwerk 1 (HeS 1), German for Heinkel Jet Engine 1, was built by hand-picking some of the best machinists in the company, much to the chagrin of the shop-floor supervisors. Hahn, meanwhile, worked on the combustion problem, an area he had some experience in. The engine was extremely simple, made largely of sheet metal.
First flight. 1 December 1932. Retired. 1954 (Spanish Air Force [ 1 ]) The Heinkel He 70 Blitz ("lightning") was a fast monoplane aircraft designed and produced by the German aircraft manufacturer Heinkel Flugzeugwerke. It was the first Schnellbomber operated by the Luftwaffe. Development of the He 70 commenced in the early 1930s in response to ...
Specifications (He 100D-1 {He 113}) He 113 silhouette used by aircraft spotters in 1940. Data from The Complete Book of Fighters [1] General characteristics. Crew: 1. Length: 8.2 m (26 ft 11 in) Wingspan: 9.42 m (30 ft 11 in) Height: 3.6 m (11 ft 10 in) tail raised to flying attitude. Wing area: 14.6 m 2 (157 sq ft)