10-transducer line array cut for ~3 kHz NRL MF Source Array During GoM08 10-transducer line array cut for ~3 kHz Frequency: 1.5-9.5 kHz Towable at up to 4 kts Depths 30-200 m 2 NAS suites (depth, tilt, etc.) ’Quasi-omni’ azimuthally 10-% duty cycle 440-V power 1

Sept 2008 Gulf of Maine NRL Geometry Typical separation: < 35 m ~3 kts Drogue NOT TO SCALE 2

NRL MF Source Array During GoM08 3

MFA Source Deck Setup

S11-20 Amplifier

NRL MF Source Array Clutter’07 (May 2007) 6

Winch Chain MF Array Drogue Line Box