4038B,C,D Derwent Mk.5, 8 & 9 aero-engines Vol. 1: Operation and description 4038B,C,D Derwent Mk.5, 8 & 9 aero-engines Vol.II Part 1: General orders and modifications, 3: Leading particulars and technical information, 4: Minor repairs, 5: Depot … 4038C,D Derwent Mk.8 & 9 engine Vol.III Schedule of spare parts
