the reason running cost is an issue, i average approx 200hrs a year. the first year i owned the Savannah, racked up just over 300 hrs. the last 2 years have seen 150 per year, only due to poor weather. so the cost difference between 40 ltrs/hr and 15ltrs/hr is quite significant. not to mention schedule servicing. and i am very familiar with the rotax line of engines. and have just as much confidence in my 912 as i do any lycombing or conti engine.
An Unleaded burning Lycombing or conti around the 200 hp range would make the second option more attracive and get it over the line. any one have experience, or know where i can find the data on th dinosaur engines burning unleaded?
If the SMA certified diesel was cheaper, it would definately be Option 2, but $EUR75,000, just is to much.
whats the max fuel capacity of an RV7 with tip tanks or other modifications?