09/11/2018 — admin
03/08/2012 — admin
R/V MELVILLE acoustic signature was successfully measured during this acoustic test. The levels of the EM 122 were controlled by a combination of propeller and anti-roll tank transients.
The general acoustic levels of MELVILLE were good and should produce excellent bathymetric data results:
- At low speeds (up to 8 knots) sonar levels were controlled by a combination of sea-state and local machinery
- At mid speeds (8 to 10 knots) sonar levels were controlled by hydrodynamic flow noise