I came across this article on a 200 hp turboprop in development.
https://www.sae.org/news/2018/03/ua...gines-for-u.s.-army?eid=332750377&bid=2058339
The company also has 10 hp, 50 hp and 150 hp models
https://www.uavturbines.com/wp-content/uploads/2017/02/UAV-Dossier.pdf
I'm posting this not because I think the company is interested in the homebuilt aircraft market (although they might be), but because I think the technology of using a centrifugal compressor, a radial inflow turbine (basically turbocharger technology) with a thermal recuperator to improve efficiency and thus bsfc is the way forward for small turbines that could be used in homebuilt aircraft. The market for military uavs is pushing the development of heavy fuel/jet A turbines in the 100-200 hp range, we just might benefit from it.
https://www.sae.org/news/2018/03/ua...gines-for-u.s.-army?eid=332750377&bid=2058339
The company also has 10 hp, 50 hp and 150 hp models
https://www.uavturbines.com/wp-content/uploads/2017/02/UAV-Dossier.pdf
I'm posting this not because I think the company is interested in the homebuilt aircraft market (although they might be), but because I think the technology of using a centrifugal compressor, a radial inflow turbine (basically turbocharger technology) with a thermal recuperator to improve efficiency and thus bsfc is the way forward for small turbines that could be used in homebuilt aircraft. The market for military uavs is pushing the development of heavy fuel/jet A turbines in the 100-200 hp range, we just might benefit from it.