Hi Guys
Just been out and measured the A frame in question. Each plastic leg is 9.5 x 2mm and come away from the hull at an angle.
As already stated for static display plasweld is more than man enough!
To use this in the water with a prop and shaft turning at 6 - 16000 rpm !
With a prop and shaft that are not perfectly balanced or worse bent !
Add to that the probability of hitting a twig in the water and the stresses invlved !
Get real ! This is a plastic kit made for static display. The only realistic chance is to make brass A frames, properly lined up with 'straight' shaft. The A frames should have tabs on the inside fixed to reinforcement.
Sorry to be the bearer of bad news but in my opinion anything else is only going to involve more wasted time/money and heartache !
longshanks