kolibri282
Super Member
Special on helicopters starting here:
http://www.flightglobal.com/pdfarchive/view/1954/1954%20-%200663.html
Amongst other things there is Raoul Hafner's Bleriot lecture on helicopters here:
http://www.flightglobal.com/pdfarchive/view/1954/1954%20-%200687.html
Have Fun!
Juergen
http://www.flightglobal.com/pdfarchive/view/1954/1954%20-%200663.html
Amongst other things there is Raoul Hafner's Bleriot lecture on helicopters here:
http://www.flightglobal.com/pdfarchive/view/1954/1954%20-%200687.html
Have Fun!
Juergen
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