Download or read book How to Build a 'Cretan Sail' Wind-pump written by R. D. Mann and published by . This book was released on 1979 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: This windpump design was adapted from a series of low-lift windmills developed in Ethiopia. A very successful windpump which when scientifically tested pumped nearly twice as much water as the original design. Contains constructional details and plans.