I think it would be really tiny to fly correctly on a P 60. The one your talking off was a prototype from Skymaster /Airpower, it was really nice saw it at jetpower maybe 2 years ago, it is a shame that they did'nt push the design further but I hear that it was too heavy. I think that small planes should stick with single exhaust, bifurcated pipes eats too much power but there is for sure a market for small ARfs. I would love a small eurosport