They trained at the Royal Engineers Depot in Chatham or the RE Mounted Depot at Aldershot .
Unlike most corps and regiments , in which the upper age limit was 25 , men could enlist in the Royal Engineers up to 35 years of age .
Royal Engineers trained at the Royal Engineers     in Chatham or the RE Mounted Depot at Aldershot .
Unlike most corps and regiments , in which the upper age limit was 25 , men could enlist in the Royal Engineers up to 35 years of age .