Download - Soft Rail L&R Symposium V8
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Soft Rail Launch and Recovery
ASNELaunch and Recovery Symposium
Annapolis, MD
Presented By Ronald Seiple
SOFT RAIL L AND R IS PATENTED # 7156036B2
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Soft Rail Approach• L&R at Speed• Take advantage of stability at 20-40ft depth• L&R in the wake “sweetspot” • Do L&R fast (<1 min) • Improve Safety• Maintain payload versatility• Make it Simple and Robust
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Soft Rail L&R Method
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Soft Rail Design Parameters
Drogue Drag = 22,528kgDive
Force=
5632kg
Scope Ratio = 4:1
Tow speed = 15 knots
Depth=
10m
Payload = 9200kgSoft Rail Tension = 26000kgPayload to Tension Ratio = 0.35
Launch Height = 4.0mSoft Rail Length = 56mScope Angle = 9.46° to water
(Modeled)
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Soft Rail Deck System
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C Commando
• 2K Tons, 220 ft Long 56 ft B
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Soft Rail Deck Gear & RHIB
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Soft Rail D/d System
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Soft Rail Ready to Deploy
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Traditional L & R
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Soft Rail L & R
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Soft Rail UUV Concept
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Static Soft Rail
Anchor
Soft Rail Cables
Tensioning Wench
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Soft Rail Demo Conclusions
• Proven At Sea• Robust
• Small Size•Deployment Speed 20kts
•Simple
• Cost Effective• Sea State 4 Achievable• Fast• Safe
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What Next
• Depressor/Drogue: Develop a unified design.• Transition• Partnership
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Soft Rail Questions