Another experimental hybrid aircraft this time with 2 turboprops and 1 jet. This is slower and also not as well balanced at any speeds so you'll need more elevator trim up to keep level due to the centre of lift being behind the centre of mass, I've done my best to fix this and I'll keep trying but so far it hasn't worked. In other words be prepared for an updated version to be posted if I can find a way around it's problems.
Top speeds at 15,000ft:
All engines: 704mph
Props only: 500mph
Jet only: 496-497
Bare in mind that these were taken at 15,000ft and are almost guaranteed to go faster at higher altitudes.
Action group 1 is the turnable front gear
Action group 2 is the turboprops
Action group 3 is the jet

Let me know what your favourite HE series aircraft is by upvoting your favourite one or leave a comment saying it's your favourite. Make sure you try them all first though.