Message text written by INTERNET:clevelee@cswebmail.com
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In addition to wondering why Europas use 3 blade less efficient (than two
blade wood) carbon fibre props, he offered the best advice yet (which has
been rattling in the back of my mind) on engine selection: The Europa is
an expensive aircraft (from his VW aircraft perspective) and installing
anything other than the factory recommended engine will severely
deteriorate the resale value of the aircraft.
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The loss of efficiency for the 3 bladed prop doesn't seem to be as much as
the theory would predict. The main reason for the 3 bladed version is to
improve ground clearance - very relevant for the mono wheel. The necessary
increase in diameter for a 2 bladed prop would increase the risk of prop
strike. It may be practical to look at 2 bladed props with the tri-gear.
Nigel Charles
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