翻訳と辞書 Words near each other ・ Headwall Pond ・ Headward erosion ・ Headwater (band) ・ Headwater darter ・ Headwater Diversion Channel ・ Headwater Diversion Plan (Jordan River) ・ Headwaters Forest Reserve ・ Headwaters Incorporated ・ Headwaters Wilderness ・ Headway ・ Headway (band) ・ Headway (disambiguation) ・ Headway Arts ・ Headway Devon ・ Headway Hill ・ Headwind and tailwind ・ Headwood railway station ・ Headword ・ Headworks ・ Headwrecker Records ・ Heady ・ Heady Lane Cemetery ・ Heady Nuggs ・ Heady Topper ・ Headz ・ Headz or Tailz ・ Headz Up ・ Head–body pattern ・ Heaf test ・ Heafford Junction, Wisconsin Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Headwind and tailwind ： ウィキペディア英語版 Headwind and tailwind A tailwind is a wind that blows in the direction of travel of an object, while a headwind blows against the direction of travel. A tailwind increases the object's speed and reduces the time required to reach its destination, while a headwind has the opposite effect. Tailwinds and headwinds are commonly measured in relation to the speed of vehicles — commonly air and watercraft — as well as in running events — particularly sprints. In aeronautics, a headwind is favorable in takeoffs and landings because an airfoil moving into a headwind is capable of generating greater lift than the same airfoil moving through tranquil air or a tailwind at equal ground speed. As a result, aviators and air traffic controllers commonly choose to take off or land in the direction of a runway that will provide a headwind. In sailing, a headwind may make forward movement difficult, and necessitate tacking into the wind. ==Aeronautics calculations== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Headwind and tailwind」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.