Hello all,
I was wondering if someone could give me advice on how to best approach this problem I am having. I have created a propeller blade but the end is flat and I would like to "cap" it with a rounded surface.

I have attached two images. One showing the open end of the model and the other shows what I want to do to close it. Any advice would be greatly appreciated! I also attached the model itself if anyone needs it.

Thanks
Richard