EKE,
You asked for operating costs. I pay £50/month for hangerage/insurance, £21/hour dry take-off to landing, and fuel costs around £10/hour. The cost of a 1/6 share is £6500. The dry charge includes all maintanance, etc, and enough for an engine fund. This is a mono-wheel.
It is not aerobatic in the UK, as Rod says. I believe that Europa themselves have special exemption which allows them to aerobat one aircraft for demonstration purposes, although I haven't actually seen it.
FFF
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