The fan module is the assembly of the fan disc, the low pressure (LP) fan shaft and the fan blades.

Its primary jobs are drawing air into the engine, compressing the bypass stream to produce 80 per cent of the engine’s thrust, and feeding air to the gas turbine core.

• The force at the base of the blade is the equivalent of 13 African elephants
• The Trent 900 draws in enough air to inflate 72,000 party balloons in one second
• The tip of the fan blades can be travelling at speeds of over 1000mph