| 单词 |
naca cowling |
| 释义 |
NACA cowling
NACA cowlingA type of cowling most widely used on reciprocating radial engines. It is a drag-reducing annular cowling whose trailing edge fairs smoothly into the fuselage or the engine nacelle. The airfoil shape of a cowling produces a forward dynamic force that more than compensates for the cooling drag of the engine. |
| 随便看 |
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