 The DH.99 design was soon modified to incorporate a combined wood-and-metal construction in light of recommendations from the MAP; the design was thus renumbered to "DH.100" by November 1941.The aircraft was considered to be a largely experimental design due to its use of a single engine and some unorthodox features, unlike the Gloster Meteor which had been specified for production early on.In February 1942, the MAP suggested dropping the project for a bomber but de Havilland stated that the twin-boom was, despite Ministry doubts, only an engineering problem to be overcome.