On 21 September 2020, Airbus presented three ZEROe airplane concepts which are all hydrogen hybrid aircraft. They are powered by hydrogen combustion through modified gas-turbine engines. Liquid hydrogen is used as fuel for combustion with oxygen. Airbus plans to to develop the world’s first zero-emission commercial aircraft by 2035.
Turboprop concept: Two hybrid hydrogen turboprop engines, which drive the six bladed propellers, provide thrust. The liquid hydrogen storage and distribution system is located behind the rear pressure bulkhead.
The exceptionally wide interior opens up multiple options for hydrogen storage and distribution. Here, the liquid hydrogen storage tanks are stored underneath the wings. Two hybrid hydrogen turbofan engines provide thrust.
For the full presentation, please refer to: https://www.airbus.com/innovation/zero-emission/hydrogen/zeroe.html