The Handley Page H.P.51 was a monoplane conversion of the earlier unsuccessful biplane bomber-transport aircraft the Handley Page H.P.43. The Air Ministry ordered the production variant off the drawing board as the Handley Page H.P.54 Harrow bomber.
Made by Handley Page.
It is the successor of the Handley Page H.P.43 ,
Handley Page H.P.51 is the predecessor of the Handley Page H.P.54 Harrow.