By Guy Taylor GKN Aerospace owner Melrose Industries is expecting profits of around £400m in its full-year results next Thursday, as pent-up demand for travel bumps up aircraft orders. Headquartered in London, the company specialises in acquiring and ramping up performance of manufacturing companies . Its booming aerospace business GKN supplies airframe and engine structures to the major planemakers Boeing and Airbus. Shares have soared over 90 per cent in the past 12 months as the aviation sector benefitted from a boom in demand for holidays on the lifting of Covid-era lockdown restrictions. …