“I will let you know my opinion when I see one that is 30+ years old.”
I sincerely hope that in 30 years my aircraft will be considered totally and utterly obsolete and we will all be flying something with an electric motor and solar panels, which does 180kn and has endurance equivalent to daylight hours. If something like this is not available we will be in big trouble, because petrol will probably be too expensive to use, even if we are still allowed to generate the CO2.
Avgas will hit £2 soon; 10 years ago it was around £50p, so how long before £3, a year?
Rod1