SECOND FLIGHT TEST OF A TOWBODY FOR A SQUID GRADIOMETER

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Authors
  1. Wilson, H.S.
  2. Regliga, R.J.
  3. Dunstan, B.W.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
This report presents the results of the second flight test of a towbody for a vertical-dewar superconducting magnetic gradiometer. The towbody was modified by the addition of a weight at the bottom in an attempt to reduce aerodynamic instabilities that were encountered in the first flight. Acceleration power spectra are presented and magnetometer slew rates and yaw, roll, and pitch amplitudes are given as tables. The pitching instability previously observed near 45 knots did not appear in this test and the high speed roll/yaw instability appeared only above 75 knots in level flight. The effect of magnetic contamination of the added weight is discussed and it is concluded that it should not be a problem during the flight of a gradiometer. An Appendix gives the algebra required in the data analysis.
Keywords
Squid gradiometers;Crossflow;High angle of attack
Report Number
DREA-TM-97-238 — Technical Memorandum
Date of publication
01 Jun 1997
Number of Pages
31
DSTKIM No
98-01978
CANDIS No
508793
Format(s):
Hardcopy;Document Image stored on Optical Disk

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