How to Build a Cretan Sail Windpump

ISBN-13: 9780903031660 / Angielski / Miękka / 1979 / 80 str.

Mann, Bob

Opis

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.