This plane is more or less an experiment to test a mechanism for switching between propeller and jet engines mid-flight. The propellers offer a fuel efficient, but very low-speed cruise. And the jets have a faster top speed for the sake of higher fuel consumption. In propeller mode, the elevators must be trimmed up heavily, as the nose will want to dip. The opposite is true for jet mode, because the nose will want to rise. The plane only be taken off and landed in propeller mode. NEVER attempt a landing in jet mode.

Operation:
Press AG1 to activate props, throttle up, and set trim to maximum. The plane will lift off on it own at 160 mph.
To switch to jet mode, slide VTOL slider up all the way, then press AG2 when the doors have opened fully. When the engines have locked into position, turn off AG1 (This is important. Leaving the props on in jet mode will hurt performance).
To switch back to prop mode, slide the VTOL slider back to neutral, then deactivate AG2. Activate AG1 again after the jet engines are fully retracted.
Failure to follow these steps could result in a critical failure of the airframe. Have fun.

Quick switch technique:
Jet mode: Slide VTOL slider up, then press 1 & 2 together.
Prop mode: Slide VTOL slider neutral, then press 1 & 2 together.