Sorry I didn't realize you are a pilot and answer was very generic. But here is "unrecoverable" scenarios: - Accelerate beyond Va: need gentle control inputs wi

Sorry I didn't realize you are a pilot and answer was very generic. But here is "unrecoverable" scenarios: - Accelerate beyond Va: need gentle control inputs will be required and it will take more time to recover; - Invert the plane: unless it's aerobatic your oil will stop flowing and engine will die very fast; - T-tails have problems with controls effectiveness that delay recovery. > There is a reason why even landing at night requires a 90day currency... With passengers. I don't like to fly at night in a single engine plane and I go months if not years between night (solo) landings. Granted I don't fly to unlighted runways, but in my experience landing at night on a lighted runway is not that harder than landing during the day. > ... in a light aircraft will take more than about 1000 feet if properly executed. Perhaps in some aircraft as much as 2000 feet. Many planes have been modified after the spin certification had been done. E.g. on my A36 I have tip tanks, radar, TN engine, anti-ice, ... I have no idea if it will recover from spin as expected or not. And I have no interest in testing it. I can tell you that I lose 500-600 feet in a stall. This gives me a hint that recovery from a spin might be more than 1000 feet.