Not quite sure what you asking but if its the black bit I could see that it would allow the trail or to be kept more leven when attached to a tow hook that is quite high. Maybe it was a long boat and the stern was too close to the ground when on tow hook?
Thing is its a the same height it would be if I drop the top 'T' bar underneath and do away with the bracket, only a 6mtr destroyer,
Guess its staying unless I get bored,
Just find it strange and curious of its purpose
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MY BIGGEST WORRY IS THAT MY WIFE(WHEN I"M DEAD)WILL SELL MY TOY'S FOR WHAT I SAID I PAID FOR THEM.
Its almost as if .. the draw tube has been turned up side down, because if it were the other way up it would fit fine ? and the black bracket wouldnt be required