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Bombardier Tail Wing Rotation Rig

SCX Special Projects designed a radio controlled, bespoke turning system to allow Bombardier Aerospace to safely and accurately lift and rotate delicate tail wings into precise positions during the assembly stages.

Prior to this solution, the assembly team tried using chain hoists and a crude clamping system to lift and rotate the wing. This was not only difficult to manoeuver and detrimental to the delicate wing structure but the shift in centre of gravity as the wing turned over meant the whole process was extremely unstable.

To meet health and safety requirements, Bombardier required an innovative solution that was capable of smoothly and reliably controlling the wing throughout the rotation, as well as reducing the forces acting on the wing itself.

Wooden profile boards of Bombardier tail wing rotation rig clamp a tail wing

3D CAD modelling enabled an analysis of loadings and isolation of the ‘safe’ sections of the delicate ¾tonne half-assembled tail wing, resulting in a bespoke clamp-system lifting attachment that evenly distributes minimal pressure along the wing spars.

Wooden profile boards perfectly follow the wing surface to provide enough clamping pressure without over-tightening, and a combination of a thin rubber insert and shims within the clamping mechanism ensure that the force is kept even.

Bombardier tail wing rotation rig in use

Two chains, attached to the front and rear of the wing clamp, are fed through chain sheaves mounted on an axel, powered by a centrally located positive drive. As the axel rotates, the proportionate chain lengths are adjusted, tilting and rotating the wing. This provides full control throughout the rotation, enabling precise positioning during the assembly stages and, via the supporting overhead crane, onto a special shipment rig once assembly is complete.

A simple pendant control mechanism provides ease of use for the operator. Three pre-set positions enable the exact orientation for each stage to be achieved quickly and safely, via a single push of a button. An override option also allows the rig to be manually rotated into any position, should the need arise.

Bombardier tail wing rotation rig

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SCX Special Projects Ltd
Roman Ridge Road,
Sheffield, S9 1GA
Tel: +44 (0)114 243 1142
Email: info@scx.co.uk
An SCX Company