| 词条 | Edward Purkis Frost |
| 释义 |
|name = Edward Purkis Frost |image = |image_size = 200px |caption = Edward Purkis Frost |birth_name = |birth_date = 1842 |birth_place = |death_date = 1922 |death_place = |death_cause = |resting_place = |resting_place_coordinates = |residence = |nationality = English |other_names = |known_for = Aeronautic experiments |education = |employer = Aeronautical Society |occupation = |home_town = |title = |salary = |networth = |height = |weight = |term = |predecessor = |successor = |party = |boards = |religion = |spouse = |partner = |children = |parents = |relatives = |signature = |website = |footnotes = }} Edward Purkis Frost (1842 – 1922) was an English pioneer of aviation. He built ornithopters, and became president of the Aeronautical Society. E.P. Frost lived at West Wratting Hall in Cambridgeshire and became a Justice of the Peace.[1] Frost began studying flight in 1868 and built a large steam-powered flying machine with both fixed and flapping wings from 1870 to 1877. Frost had intended to have a 20-25 hp steam engine but the actual engine with 5 hp was not powerful enough to lift the ornithopter from the ground. The experiment cost Frost £1000. In collaboration with several colleagues he started another large similar craft in 1902 with an internal combustion engine. It lifted from the ground in 1904.[1] A wing from this craft is displayed in London's Science Museum. Frost had been a member of the Aeronautical Society since 1875 and became its president from 1908 to 1911.[2] References1. ^1 Kelly, Maurice. 2006. Steam in the Air. Pen & Sword Books. Pages 49-55 are about Frost. {{authority control}}{{DEFAULTSORT:Frost, Edward Purkis}}2. ^Society Worthies.... Flight International, 13 January 1966. At flightglobal.com archive. Includes photos of E.P. Frost. 7 : English aerospace engineers|Aviation inventors|Aviation pioneers|19th-century aviation|1842 births|1922 deaths|People from West Wratting |
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