Deployment; Autonomous Deployment - Ocean Sonics Tow Fish User Manual

Deployment

1. Secure the deck end of the deployment rope to the vessel.
2. Ensure the rope is secured to the Tow Fish shackle.
3. Stop the vessel.
4. Place the Tow Fish in the water maintaining control over the towline.
5. To adjust the Tow Fish depth, have the vessel slowly transiting and pay out the rope
to a desired length (anticipate 5:1, rope length to depth ratio).
Please see Appendix B
6. Once the desired rope length is paid out the rope can be tied off to a midsection point
on the vessel.
7. Increase the vessel to the desired towing speed.
For best results, the Tow Fish should be operated at speeds between 1 to 5 knots.
8. Once the deployment is complete, take care to gently place the Tow Fish on deck,
and rinse the unit along with the deployment rope.
9. Stop the recording on the hydrophone and power down to maintain battery life.

Autonomous Deployment

Gunwale
Rope Reel
Vessel Deck
- Recommendation #3 for further details.
Rope (Mid-Section) Tied
Off
Rope (Deck End)
Tied Off
Tow Fish User Guide
Shackled to Tow Fish
Bracket
Tow Fish
April 2020 P.4