Howdy do. I'm designing a part 103 ultralight and at the moment I'm attempting to design the wings. I need to find the wing loading, but the only problem is that I need to have an ideal or wanted stall speed in mind for my aircraft. I plan to have a Hirth F-33 on it, and the structure will be mostly wood and somewhere in the range of x-250 lbs in weight. (It'll be somewhere in the range of 422lbs full weight) I have no prior experience with aircraft and I cannot find any reliable sources on the f-33's performance in flight. I need to have a stall speed in mind or I will not be able to calculate the wing loading. what would a reasonable stall speed be to aim for in this situation? Thank you.