The Army loaned a single CH-47A, serial number 65-7992, to be modified in exchange for exclusive rights to the project's research data.

The rear pylon was raised 30 inches (76 cm) to increase rotor clearance and decrease noise.

These wings served to provide extra lift and allowed the BV-347 to achieve a 60 degree banked turn.

During hover, the wings would be tilted to 85 degrees to minimize interference with the rotor downwash.

The BV-347 was also fitted with a retractable ventral gondola, with its own set of controls, which was used to operate the load recovery system.