sentences:  The Hyderabad was a development of the Handley Page W.8 airliner, initially designated the W.8D, to meet Air Ministry Specification 31/22 for a replacement for the Vickers Vimy for the Royal Air Force.The Hyderabad was structurally similar to the W.8, and was an all-wooden, three-bay biplane powered by two Napier Lion engines.It was fitted with a single fin and rudder, and was one of the first large aircraft to be fitted with Handley Page leading edge slats, giving good lateral stability.