These models of passenger stairs with a variable geometry, are all designed to manage passengers disembarking of the aircrafts doors; located at a height between 1800 to 3800/4000 mm. Each model is equipped with a PLC control which handles all the machine functions and the security as well. • 404D-22 PERKINS water cooled engine, power 37,3 kW/50 bhp @2800 rpm 4 cylinder 2.2 litre unit, emissions legislation for EC Stage IIIB/USA EPA Tier 4 • D 2011 L3 i - DEUTZ air/oil cooled engine, power 36,3 kW/49 bhp @2800 rpm 3 cylinder 2.33 litre unit, emissions legislation for EC Stage IIIA/USA EPA Tier...