I still have a lot of work to do on this, before it's ready for general release. For a big pig, however, this thing is a real blast to fly so here's a preview.
The Neptune was one of the first aircraft to be fitted with both piston and jet engines, and I've replicated that here. Physics have not been fine tuned yet but it's perfectly flyable without any tweaking.
Controls are pretty much standard except for the jet assist, which is on the 3-position switch, giving you 0, 50, & 100% boost. I'm not sure if this plane could fly on just the jets or not. In any case I've set it up such that with the reciprocating engines at idle and jets at full boost, the plane will just barely stay aloft with flaps deployed. This seemed about right to me, but if anyone has any real historical data on this plane please let me know.
Doug