Pipistrel took the wraps off its latest iteration of what was originally called the Panthera, the hybrid variant of which has been renamed the HYPSTAIR, a pun that fails to diminish the significance of the achievement. Pipistrel clams the most powerful aerial hybrid electric power train, powering it up on February 9 and making a mighty, but subdued noise, much of it coming from the specially-designed, five-bladed propeller. Putting out 200 kilowatts (268 horsepower) at full throttle, the Siemens motor turned the propeller using first just the generator, and then the motor in low and high power modes. The propulsor (perhaps a new term to consider as hybrid power becomes a common operational type for electric aircraft) produces 100 kW (134 hp.) from the generator driven by a turbonormalized internal combustion engine, and the top rated power from the drive motor (150 kW continuous, or 201 hp.). These impressive numbers allow the HYPSTAIR to achieve the same kinds of performance of …