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L-1011 testing with relaxed static stability (1984)

Rising, J. J. ; Henke, K. R.

In: CASI

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Publication Date: 2016-06-07

Description: Wind tunnel and flight tests indicate that fuel savings of 2 percent can be achieved by center of gravity (C.G.) management for an L-1011 with the current wing configuration. The normal c.b. location is at 25 percent mean aerodynamic center (MAC). The maximum fuel saving occurs for a C.G. location of 35 percent MAC. However, flight at 35 percent requires that the C.G. range be extended aft of the 35-percent point. Flight at C.G. locations aft or 35 percent requires a pitch active control system (PACS) so that handling qualities are not significantly degraded. The development of this PACS is discussed.

Keywords: AIRCRAFT STABILITY AND CONTROL

Type: NASA. Langley Research Center NASA Aircraft Controls Research, 1983; p 443-467

Format: application/pdf

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