Originally Posted by K1W1
The two stern launching systems I have been involved with both hold the doors down with hydraulics when launching and or retrieving.
The hydraulics have to be man enough to submerge the door in the first place as well.
After the Tender is launched the Doors are returned to the horizontal position or it can be closed if the main boat is going to move and the Tender is going to be elsewhere or whatever the operational requirements require.
K1W1, about the trailers used on the stern platform, do you know which was the supplier? Were the trailers rolling on the stern door or cantilevered above it? Are the pictures in attachment a correct representation?
With regards to the Neptunus-photo in my previous post:
- I don't know the size of the tender.
- It looks ideal, because you have the luxury of the platform lift also when the tender door is closed. That is great for older people or divers. Climbing up a standard swimladder can be hard, especially if there's some rolling going on. With the swimplatform lowered, you can just swim over it and stand up.
But: If the lift mechanism ever breaks down, you're left without a tender. I wonder if the MCA would accept that if the tender also has to be the rescue boat. Maybe they accept it if you can lower the platform with a manual pump? Anyone any experience?