Outstanding text on fans
This is a good English translation of an outstanding text on fans.
The German original, although not exactly updated, is a milestone on tha subject, as it includes:
-centrifugal
-axial-flow
-and also cross-flow fans!
Exposition is clear and scientifically correct.
Publisher is unknown, the book looks like a collection of photo-copies, no record exists as to publisher's address, no ISBN: this is why the rating is not full.
