In the initial teaser post, I presented a ducted-fan aircraft concept. After some testing, I discovered that the performance was not meeting expectations. So, I designed a new engine from the PE-4-DF, which is called the PE-5-DF. It significantly increases the aircraft's performance, and gives it a better advantage over other single-engine, piston powered aircraft.

However, if you plan to use this in a race, I suggest that you do not race a turboprop, since they are technically jet engines and can be much more powerful than a ducted fan, depending on their configuration.

Thoughts or suggestions? Let me know!