I understand your conserns, however its not meant to replace a piston engine. The whole airplane has to be built around the turboprop, which means focusing on fuel storage.Sorry; you can't. At 50 GPH, and the typical 35-45 gallons of fuel capacity in a typical 2 seat homebuilt, by the time you taxi, take off, and climb to pattern altitude, you'd be at VFR minimum fuel. 200 kts on downwind might *sound* cool, but it would be counterproductive at best.
edit: If flow is 50 GPH @16K feet, you couldn't even leave the ground legally; it's got to be much worse near sea level.
It should weight around 60kg, has a TBO of 1000h too and the overhaul will definetly be allot less then the price of a new engineThe real question is weight, $, TBO and cost of overhaul.
I mean the TJS is 1000hr, and I'd be wondering if I shouldn't just buy a replacement at the cost.