This is not as might reasonably be supposed, the first Hawker monoplane, for some ten years back there appeared the Duiker, a high-wing two-seater, built experimentally for the R.A.F. Nevertheless in the new monoplane Fit. Lt. P. W. S. Bulman has a doubtless fascinating subject for investigation and the R.A.F. the fastest fighter in the air. A single-seater, it mounts the equally new Rolls-Royce Merlin engine, so far not type-tested. The tail wheel retracts in addition to the main undercarriage, flaps are fitted, and the pilot is enclosed.