The document describes a Soft Rail Launch and Recovery (L&R) system for unmanned underwater vehicles. It presents the Soft Rail approach which allows for fast L&R within 1 minute at speeds of 15 knots and depths of 10 meters. Key advantages are improved safety, payload versatility, and a simple, robust design. Details of the Soft Rail design parameters and deck system are provided. It concludes the Soft Rail approach has been proven at sea and offers a cost effective and fast L&R method in sea states up to 4.

1. Soft Rail Launch and Recovery ASNE Launch and Recovery Symposium Annapolis, MD Presented By Ronald Seiple SOFT RAIL L AND R IS PATENTED # 7156036B2

3. Soft Rail L&R Method

4. Soft Rail Design Parameters Drogue Drag = 22,528kg Dive Force = 5632kg Scope Ratio = 4:1 Tow speed = 15 knots Depth = 10m Payload = 9200kg Soft Rail Tension = 26000kg Payload to Tension Ratio = 0.35 Launch Height = 4.0m Soft Rail Length = 56m Scope Angle = 9.46° to water (Modeled)

5. Soft Rail Deck System

7. Soft Rail Deck Gear & RHIB

8. Soft Rail D/d System

9. Soft Rail Ready to Deploy

10. Traditional L & R

11. Soft Rail L & R

12. Soft Rail UUV Concept

13. Static Soft Rail Anchor Soft Rail Cables Tensioning Wench

16. Soft Rail Questions