Specifications for the design- Sandra Donohoe

The following brief is based on information provided by Mr Thomson and will be brought up in the following meeting to decide on any new requirements to the design:

• Designed to have a minimum lifting load of 1000kg, the final value will depend on the tasks the crane is going to perform.

• The load material has no specific dimension/size limitations, therefore loads will be concrete blocks and structure beams of a selected range.

• Transport the load a minimum of 4m from the point of lift i.e. from 1 “end” of the beam to the other. As a result the glide rail would require a minimum range of 5.50 m to 6.00 m to compensate for support beam positioning and load dimensions.

• Needs to be rapidly disassembled and reassembled on site

• Some problems caused by uneven terrain can be tackled in two ways: with height varying support frames (which would have an impact on cost) or have “packing material” transported in a trailer (such as wood) to be placed under the frames and balance the structure (time would be impacted).

• The individual parts of the crane are to be carried manually over 100m of rough ground by 4 people and require as few trips back to the vehicle for the components

• Transported using a standard Land Rover size 4x4 or small helicopters

• Powered by either a hand-cranked or powered winch

• The crane is to have an expected lifespan which lasts the duration of the catastrophe and may be put out of service once this task has been completed. Consequently the material selected would need to be strong, resistant to forms of weathering/corrosion…, affordable price, can consider recycling of frames material.