naca wikipedia - EAS
- アメリカ航空諮問委員会 (アメリカこうくうしもんいいんかい、National Advisory Committee for Aeronautics、NACA)は、1915年3月3日に設立された アメリカ合衆国連邦政府 の機関の1つである。ja.wikipedia.org/wiki/%E3%82%A2%E3%83%A1%E3%83%AA%E3%82%AB%E8%88%…
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NACA airfoil - Wikipedia
https://en.wikipedia.org/wiki/NACA_airfoilThe NACA airfoils are airfoil shapes for aircraft wings developed by the National Advisory Committee for Aeronautics (NACA). The shape of the NACA airfoils is described using a series of digits following the word "NACA". The parameters in the numerical code can be entered into equations to
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Xem thêmNACA initially developed the numbered airfoil system which was further refined by the United States Air Force at Langley Research Center. According to the NASA website:
During the late 1920s and...
Xem thêmThe NACA four-digit wing sections define the profile by:
1. First digit describing maximum camber as percentage of the chord.
2. Second digit describing the distance of...
Xem thêmThe NACA five-digit series describes more complex airfoil shapes. Its format is LPSTT, where:
• L: a single digit representing the theoretical optimal lift coefficient at ideal angle of attack CLI = 0.15 L (this is not the same as the lift coefficient...
Xem thêmFour- and five-digit series airfoils can be modified with a two-digit code preceded by a hyphen in the following sequence:
1. One...
Xem thêmAn improvement over 1-series airfoils with emphasis on maximizing laminar flow. The airfoil is described using six digits in the following sequence:
1. The number "6" indicating the series.
2. One digit describing the distance of the minimum pressure area in...
Xem thêmFurther advancement in maximizing laminar flow achieved by separately identifying the low-pressure zones on upper and lower surfaces of the airfoil. The airfoil is described by
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Xem thêmVăn bản Wikipedia theo giấy phép CC-BY-SAMục này có hữu ích không?Cảm ơn! Cung cấp thêm phản hồi National Advisory Committee for Aeronautics - Wikipedia
https://en.wikipedia.org/wiki/National_Advisory_Committee_for_AeronauticsThe National Advisory Committee for Aeronautics (NACA) was a United States federal agency founded on March 3, 1915, to undertake, promote, and institutionalize aeronautical research. On October 1, 1958, the agency was dissolved and its assets and personnel were transferred to the newly created National Aeronautics and Space Administration(NASA). NACA is an initialism, …
Wikipedia · Nội dung trong CC-BY-SA giấy phépNACA – Wikipedia
https://fi.wikipedia.org/wiki/NACANACA kiinnostui 1950-luvulla koneista, jotka voisivat lentää ilmakehän ulkopuolelle, ja vuonna 1952 sen laboratoriot alkoivat tutkia ongelmia, joita saattaa syntyä avaruudessa. NACA tutki myös yläilmakehässä yliäänennopeudelle tapahtuvien lentojen ongelmia, ja tutkimukset johtivat X-15 -koneen kehittämiseen.
- Toimiala: ilmailu
- Tyyppi: Yhdysvaltain valtion virasto
NACA-Profile – Wikipedia
https://de.wikipedia.org/wiki/NACA-ProfileXem thêm trên de.wikipedia.orgWährend der 1930er Jahre wurden von der NACA verschiedene Variationen von Profilen und Profilkrümmungen untersucht. Dabei wurden auch die Profildicke, die Lage der Profildicke, die Lage der Profilkrümmung, der Radius der Flügelvorderkante und andere Profilparameter variiert.Die NACA untersuchte erst…- Thời gian đọc ước tính: 8 phút
NACA — Wikipédia
https://fr.wikipedia.org/wiki/NACALe sigle NACA peut désigner : . le National Advisory Committee for Aeronautics, l’agence aérospatiale des États-Unis d'Amérique jusqu'en 1958 (année où il a été remplacé par la NASA) ; . le carénage NACA, un capot moteur réduisant la traînée des avions et permettant aussi le refroidissement du moteur, mis au point par le NACA,; les profils NACA, profils …
Naca - Wikipedia
https://it.wikipedia.org/wiki/NacaXem thêm trên it.wikipedia.orgLa processione così come riportato dallo storico Giacomo Frangipane nasce dall'usanza dei Confratelli di andare a visitare i Sepolcri la sera del Giovedì Santo portando a turno "sugli omeri" una pesante Croce Penitenziale. La “Naca” veniva portata a spalla dai rappresentanti delle corporazioni dei mestieri, per molto temp…- Thời gian đọc ước tính: 4 phút
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