FWT
Guru
- Joined
- Dec 10, 2020
- Messages
- 1,598
- Vessel Name
- Resilient
- Vessel Make
- Helmsman Trawlers 38E
Improve on my plan if you can.
Helmsman 38 is the mother ship, on order with delivery expected next spring. I'll be keeping the dingy up top, with a Jackson low profile davit crane installed.
The dingy and motor have been purchased, and absent the mother ship now just sits in my garage. ePropulsion Spirit 3hp will not be kept on the dingy, but rather will be stowed elsewhere and installed as used. The dingy is the Polycraft 10 ft. hard dingy, selected for its stability. Its heavy at 235lbs empty, but that's about the weight of a rib plus motor for popular models of both when the engine is left attached, which of course is the common choice. I'm planning to go with Soft Chocks at least initially. Following is a link to the dink that contains pics.
https://www.polycraft.com/300-tuffy
There are no installed lifting eyes. And frankly no good option to install them. Though the dealer advises one can use the handles (2 per side), and / or a similar towing point at the point of the bow at the top of the bowstem, from the start that seemed a bit less secure than I'd like. Probably OK. Safer to go another route.
So my plan is to use lifting straps that circle under the boat, thread them under the handles to a central ring or heavy shackle the crane hook can then lift. Two straps, 4 ends brought to a central ring. Use snap shackles at the ends of the straps for speed and ease, to attach to the ring. Threaded under the handles solves any risk of the straps sliding into an unbalanced condition.
Looking at the load numbers, its astonishing just how much more load straps can handle compared to fairly heavy lines.
I'm wondering if the addition of a lifting bar / spreader bar would be needed or useful? Or just another piece of gear to deal with? The advantage, if any, would seem to be to keep the load on the straps vertical. With straps threaded under the handles I can't see it doing much to mitigate slipping of the straps.
Its my best guess that the location of those handles is pretty good for weight distribution. Its definitely heavier at the stern, so those handles fairly far aft make sense. And the forward handles are at a point of a pretty good guess of the load balance of the weight forward of the rear strap. If used, the spreader bar would be 3-4 ft, and most likely 3 ft. If used, each pair of straps would terminate at an end of the bar, and then attach the bar to the crane hook at the center of the bar.
Thoughts?
Helmsman 38 is the mother ship, on order with delivery expected next spring. I'll be keeping the dingy up top, with a Jackson low profile davit crane installed.
The dingy and motor have been purchased, and absent the mother ship now just sits in my garage. ePropulsion Spirit 3hp will not be kept on the dingy, but rather will be stowed elsewhere and installed as used. The dingy is the Polycraft 10 ft. hard dingy, selected for its stability. Its heavy at 235lbs empty, but that's about the weight of a rib plus motor for popular models of both when the engine is left attached, which of course is the common choice. I'm planning to go with Soft Chocks at least initially. Following is a link to the dink that contains pics.
https://www.polycraft.com/300-tuffy
There are no installed lifting eyes. And frankly no good option to install them. Though the dealer advises one can use the handles (2 per side), and / or a similar towing point at the point of the bow at the top of the bowstem, from the start that seemed a bit less secure than I'd like. Probably OK. Safer to go another route.
So my plan is to use lifting straps that circle under the boat, thread them under the handles to a central ring or heavy shackle the crane hook can then lift. Two straps, 4 ends brought to a central ring. Use snap shackles at the ends of the straps for speed and ease, to attach to the ring. Threaded under the handles solves any risk of the straps sliding into an unbalanced condition.
Looking at the load numbers, its astonishing just how much more load straps can handle compared to fairly heavy lines.
I'm wondering if the addition of a lifting bar / spreader bar would be needed or useful? Or just another piece of gear to deal with? The advantage, if any, would seem to be to keep the load on the straps vertical. With straps threaded under the handles I can't see it doing much to mitigate slipping of the straps.
Its my best guess that the location of those handles is pretty good for weight distribution. Its definitely heavier at the stern, so those handles fairly far aft make sense. And the forward handles are at a point of a pretty good guess of the load balance of the weight forward of the rear strap. If used, the spreader bar would be 3-4 ft, and most likely 3 ft. If used, each pair of straps would terminate at an end of the bar, and then attach the bar to the crane hook at the center of the bar.
Thoughts?