BrianGil
Tenderfoot
- Joined
- Nov 9, 2014
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- 2
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- Primary Interest:
- All Treasure Hunting
- #1
Thread Owner
Hello everyone
It's good to find and get on this forum, I am a commercial diving contractor based in the UK. I have a question based on the "mailbox" dredging system as used back in the day by Kip Wagner and Mel Fisher. Does anyone have any useful pictures or diagrams? I intend to mount a 24 inch diameter propellor inside a 25" (internal dia') tube, about 10 feet long (tube steel is half inch thick. I intend to use a hydraulic motor to drive this propellor at anything between 180-300rpm. the system is being put together to "spot dredge" both soft and compacted river silt that is obscuring harbour culverts to a silt depth of 12 feet in places with a water depth of 20-30ft above that. The system will be attached to and supplied by a jack-up spud leg barge that will have the legs deployed to remove the need for a 3-point mooring. Of special interest would be modifications to increase performance (inlet siting, vortexing, angles of prop wash). Thanks guys
It's good to find and get on this forum, I am a commercial diving contractor based in the UK. I have a question based on the "mailbox" dredging system as used back in the day by Kip Wagner and Mel Fisher. Does anyone have any useful pictures or diagrams? I intend to mount a 24 inch diameter propellor inside a 25" (internal dia') tube, about 10 feet long (tube steel is half inch thick. I intend to use a hydraulic motor to drive this propellor at anything between 180-300rpm. the system is being put together to "spot dredge" both soft and compacted river silt that is obscuring harbour culverts to a silt depth of 12 feet in places with a water depth of 20-30ft above that. The system will be attached to and supplied by a jack-up spud leg barge that will have the legs deployed to remove the need for a 3-point mooring. Of special interest would be modifications to increase performance (inlet siting, vortexing, angles of prop wash). Thanks guys
