The STV 18-40 stair is a towable unit specially designed for boarding and off bording of passengers to/from all current types of aircraft having the height of the threshold from the ground ranging between mm. 1800 and 4000.

Main Characteristics

Operative Range

1800 to 4000 mm


Mounted on custom-made towable chassis which incorporates , variable angle ramp, electric system and associated hydraulics.


Ramp cylinders and outriggers. All cylinders with pilot overcentre valves

Electrical system

12 VDC

Braking system

Mechanic parking brake acting on front wheels when tow bar is up-rised.

Main Options

– Pedestrian control

– Diesel Engine

– Electrical propulsion

– Geometric steering

– Solar panel

Additional Options

Available upon request