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・ North American Communications
・ North American Company
・ North American Competitiveness Council
・ North American Computational Linguistics Olympiad
・ North American Computer Chess Championship
・ North American Confederacy
・ North American Conference of Homophile Organizations
・ North American Conference on Afroasiatic Linguistics
・ North American Conference on Chinese Linguistics
・ North American Congress on Latin America
・ North American Consortium on Legal Education
・ North American Cordillera
・ North American cougar
・ North American cuisine
・ North American Datum
North American DC-3
・ North American Debating Championship
・ North American Defence College
・ North American Development Bank
・ North American Division of Seventh-day Adventists
・ North American Eagle Project
・ North American Electric Reliability Corporation
・ North American Energy Infrastructure Act
・ North American English
・ North American English regional phonology
・ North American Ensemble Forecast System
・ North American Environmental Atlas
・ North American F-100 Super Sabre
・ North American F-107
・ North American F-82 Twin Mustang


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North American DC-3 : ウィキペディア英語版
North American DC-3

The DC-3 was a proposed spaceplane designed by Maxime Faget at the Manned Spacecraft Center (MSC) in Houston. The design was nominally developed by North American Aviation (NAA), although it was a purely NASA-internal design.
Unlike the eventual Space Shuttle design that emerged, the DC-3 was a fully reusable launch vehicle two-stage-to-orbit design with a smaller payload capacity of about 12,000 lbs and limited maneuverability. Its inherent strengths were good low-speed handling during landing, and a low-risk development that was relatively immune to changes in weight and balance.
Work on the DC-3 program ended when the US Air Force joined the Shuttle program; they demanded a much greater "cross-range" maneuverability than the DC-3 could deliver, and expressed serious concerns about its stability during re-entry. NAA eventually won the Shuttle Orbiter contract, although it was based on a very different design from another team at MSC.
==History==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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