U.S. Special Operations Command have been talking about having this capability for some time. Bell previously shared test footage of a scale engine mechanism that would allow for transition from propeller to turbofan by using a method of stopping and then stowing the blades. This mechanism looks similar to the renderings provided for the X-76.
The program goals are listed as follows:
- Achieve cruise at speeds exceeding 400 knots
- Hover in austere environments
- Operate from unprepared surfaces