Q

I admire your enthusiasm but you have gone back to designing your model around the motors and making huge assumptions about how these motors will perform in a heavy 5ft hull.

In this forum you have access to some of the best model builders in the world, some of who have been trying to advise you about the best and most practical way to build your boat

The MFAs will struggle to achieve the performance that you desire and 65mm props are far to big for the 800 as all they will do is significantly increase the amp draw without adding any speed.

If you are intent on using the 800s then I would suggest that you reduce the size of the boat to 4ft and the prop diameter to 50 > 55mm.

This isn't a criticism, it is simply an assessment of the situation and whilst I am happy to help you with this project you will find that, if you ignore or question the advice then these experts will melt away.

Q

As a group we are happy to help, even if we are sometimes grumpy, please come back when you have firmed up your plans and we will carry on from there.

All the best

Paul