Parallelogram type with treads pivoting on full length stringers. Robust all steel construction, the stair flight is mounted on a welded steel chassis sub-frame. Automatic lift-mast locking mechanism fitted to protect against hydraulic failure when elevated.

The stair treads and mid landing & top-platform walking-area are surfaced with grip-faced aluminium tread-plate.

Sliding doors on top platform with hand-operated spring-bolts at both sides of the top-platform to facilitate opening the aircraft doors with the Steps interfaced with the Aircraft. Leading edges fitted rubber buffering. A pivoting-section with rubber buffering is fitted at the leading edge of the top-platform to compensate with fuselage contours.

The stair has tubular-steel side/hand rails with a mid-rail and clad with aluminium panels, fitted to both sides of the stair-flight. Full aluminium panels are fitted to the sliding rails at each side of the top-platform. All hand railing fitted with plastic covering available in a range of colours.

Steering is turntable-type through a ball-bearing ring, controlled by the tow-bar. Tow-bar has a 50mm diameter towing-eye and grip-handle to assist coupling.

Four, 5-stud fixing, two-piece wheels, with industrial pneumatic 600-9 tyres are fitted on hubs with taper-roller bearings

Parking-brake – operating on front steering wheels, actuated by raising the tow-bar.

A tubular-steel push-rail is fitted at the rear end of the chassis on both sides, providing a conveniently positioned hold for pushing and pulling.

Stabiliser-jacks are fitted to the sides of the chassis-frame. The front two are mounted on pull-out extending arms for increased stability. The arms are supported on nylon rollers to slide easily & retained by spring loaded pins when retracted or extended.

Standard Finish