After successful tests, several Cessna models have been adapted to run on less polluting aviation fuel. Now, operators of Textron Aviation’s Cessna 172 Skyhawk and 182 Skylane models can refuel with 91- or 94-octane unleaded or 100-octane ultra-low-lead aviation gasoline.
Two hybrid aircraft factory start-ups that have rejuvenated the same old aircraft. One is American, called Ampaire, which is an acronym that offers electrical attachment in the air. The other is a French company, VoltAero, which developed a hybrid power plant from a Nissan car engine.