Aircraft
Engines Change, Weight Increases for Hydrogen Business Airplane
Pusher propfans have replaced ducted fans in BYA-1’s preliminary design review
Beyond Aero BYA-1
Beyond Aero has completed the preliminary design review for its eight-seat BYA-1 hydrogen-powered business jet.

Rear-facing propfans have replaced the earlier ducted fan engines in the updated design for Beyond Aero’s in-development hydrogen-electric business airplane. On Tuesday, the French start-up released new drawings when it announced the completion of the preliminary design review for the eight-seat model.

The other significant change to the design is an increase in maximum takeoff weight from 8.6 to 9.6 metric tons (21,164 pounds). This means that the BYA-1 will need to be certified under EASA’s CS-25 rules, as opposed to the CS-23 rules for twin-engined commuter aircraft weighing less than 19,000 pounds.