The Science Museum decided to replace the Steel House exhibit with a capsule, identical to one currently in use on The London Eye on the Thames. The work would entail lowering the house, dismantling and removing it, bringing in the capsule, building it and hanging it.

Directly below the space where the steel house was hanging was a large beam engine, which not only could not be moved, but also had to remain visible as an active exhibit during the period of works. All work had to be done during nights and any impact on the normal running of the museum was unacceptable.

A large truss table was constructed above the beam engine. Normally a simple task, this process was carried out with particular attention to detail so as to avoid damaging the exhibit, above which Unusual was working The legs were clad and the public were still able to view a large percentage of the exhibit underneath the working platform.

Once the platform was built, the Steel House was lowered onto the working platform and then dismantled. The component parts were lowered over the side of the platform using a chain hoist, suspended from the roof of the building.

The capsule arrived in two parts. The first consisted of the side pieces and the second was a flatbed, (illustrated above) with the top and bottom of the capsule. Once built, the capsule would weigh around 2 tonnes.

The upper and lower sections of the capsule were delivered in individual 'L' shaped steel frames. These were too high for the access doors of the museum, so Unusual devised a way of getting the units in by extending the lower edge of the frame and rotating the shell 45 degrees, hence reducing the overall height.

Once in the building, this rotation process was reversed, because there was sufficient height in the museum to get the exhibit to its destination, but insufficient gangway width.

Four riggers were used to install suspension points in the roof.

Once in place, the top and bottom sections of the capsule were lifted onto the platform and the manufacturers re-assembled the unit.

The completed capsule was then lifted into position and fixed to the suspension points. Finally the platform and all temporary rigging equipment was removed.