HB-61 "HYDROPHONE"
A row of microphones along the hull, listening to the ocean for a signature.
The hydrophone was the boat's primary sensor underwater. A skilled operator could identify ship type, range, bearing, and sometimes ship name from the screw beats alone. The instrument did not emit. It only listened. Most of the boat's underwater contacts were made on the hydrophone first, and the periscope only confirmed what the operator had already heard.
For those who understand that listening, carefully, gives more away about a target than any signal you could send.
Harborborne. Built to Endure.
The hydrophone was the boat's primary sensor underwater. A skilled operator could identify ship type, range, bearing, and sometimes ship name from the screw beats alone. The instrument did not emit. It only listened. Most of the boat's underwater contacts were made on the hydrophone first, and the periscope only confirmed what the operator had already heard.
For those who understand that listening, carefully, gives more away about a target than any signal you could send.
Harborborne. Built to Endure.
Original maritime artwork -createdin‑house
Breathable canvas, everyday comfort
Durable print process for rich,lasting color
Fast dispatch from US locations
30‑day returns & easy exchanges
HB-61 "HYDROPHONE"
Sale price$27.00
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HB-61 "HYDROPHONE"
Sale price$27.00
- Materials: Canvas upper • Cushioned insole • Rubber outsole
- Care: Spot clean or gentle cycle cold; air dry
- Most orders ship in 1–3 business day from our US locations
- Free shipping over $75 (US)
- Try at home for 30 days—easy returns & exchanges
- Warranty summary if applicable