Well, I'm glad that at least one person is familiar with this tpe of shelter. Mine is more a roof suspended from trees or poles, but the principle is the same. The one thing I don't understand is, if people don't think lean-to's work, why make them? Why even have them in the books if they can't keep you dry or warm? That doesn't make any sense to me. I would think that they wouldn't want someone wasting time building a shelter that won't work and could possibly cause a death resulting in a lawsuit. For that reason alone, common sense should tell you that they do work. I loved the story AROTC. I bet your father felt good that someone could benefit from his work. Thanks for the post AROTC.