VoltAero To Start Cassio 300 Assembly Before Year End VoltAero is a company that is set to make hybrid-electric aircraft in three versions. The Cassio base aircraft will eventually be available in three versions, the first being the Cassio 330. The Cassio 330, once certified, will come as a 4/5 seat aircraft with a 330 kw electric-hybrid power module -hence the model name-. Other models in the pipeline will include the Cassio 480 which will have 6 seats powered by a 480 kw power module and lastly the 10/12-seat Cassio 600 which as you guessed ill have a 600 kw power module. For now though the emphasis is on fielding the Cassio 330 model. The company already has a tested -Cassio 1- well-engaged in flight tests that is near to passing 10,000 test km. That aircraft has the 600-kilowatt full-power version of VoltAero’s electric-parallel hybrid propulsion unit.