Hi I'm a university student, Im in my 3rd year and im doing a project on designing a landyacht.

I need some help with the sails part
However I'm very new to how sails work and only know the simple fundementals of sails.
I have to do some calculations on the velocity of a land yacht, just some rough ones to start with what I don't know is how I can calculate how much force the sail generates from a given wind speed, and once I calculate this forward force, how do I calculate the velocity of the land yacht, given the land yacht drag and wheel drag

I would really appriciate it, if someone could shed some light on the subject so my question is how do I calculate the speed of the land yacht?

Thank you in advance!

Hi to all, been reading this forum for around a week and have convinced myself that i need a LLM in the garage, the construction of the chassis seems pretty straightforward and i will follow the plans (almost to the letter)for ease of build, have my welding gear and have built stitch and glue power boats before.
The one thing i am not to hot on is the sail/mast, i have managed to pick up a alloy laser mast and a windsurfing sail from the tip, could i use this? i know that the sail will need the pocket recutting for a straight mast, time is on my side but alas a budget is not!!

Thanks in advance Phil