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Full-scale drag tests of landing lamps / by C.H. Dearborn.
- Format:
- Book
- Government document
- Author/Creator:
- Dearborn, C. H., author.
- Series:
- Technical note (United States. National Advisory Committee for Aeronautics) ; 497.
- Technical note / National Advisory Committee for Aeronautics ; No. 497
- Language:
- English
- Subjects (All):
- Airplanes--Lighting.
- Airplanes.
- Drag (Aerodynamics)--Measurement.
- Drag (Aerodynamics).
- Wind tunnel testing.
- headlights.
- Physical Description:
- 1 online resource (5 pages, 3 unnumbered pages) : illustrations.
- Place of Publication:
- Washington, [D.C.] : National Advisory Committee for Aeronautics, 1934.
- Summary:
- Drag tests were conducted on full-scale modes of two Army Air Corps type A-6 landing lamps mounted on and 8 by 48 foot airfoil. Drag mesurements were made with the lamps in the leading edge and attached to the lower surface at the 5 and 10 percent chord positions. The drag of the lamps whenfaired into the airfoil was also measured.
- The results show that at 100 miles per hour and at the angle of minimum drag of the airfoil the unfaired lamps at the leading edge produced an increase in drag of 5.5 pounds and that the unfaired lamps on the lower surface at either position increased the airfoil drag 22.5 pounds. These increases represent 6 and 24 percent of the minimum drag of the airfoil, respectively. Fairing the lamps into the airfoil reduced the drag of the lamps about 50 percent for the leading-edge position and about 60 percent for the two lower surface positions.
- Notes:
- Title from title screen (viewed March 18, 2020).
- "May 1934."
- "Langley Memorial Aeronautical Laboratory."
- No Federal Depository Library Program (FDLP) item number.
- Includes bibliographical references (page 4).
- Electronic reproduction. Denton, Texas : University of North Texas, 2011. Electronic reproduction from print master produced by University of North Texas.
- Other Format:
- Print version: Dearborn, C. H. Full-scale drag tests of landing lamps
- OCLC:
- 1145759609
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