Hawker Typhoon - Flying The Typhoon

Flying The Typhoon

Flight Lieutenant Ken Trott flew Typhoons with 197 Squadron and recalled:

Rather a large aircraft shall we say, for a single-engine fighter. Terrific power. Quite something to control. I liked it from the point of view of speed and being a very stable gun platform. You could come in on a target at 400 mph and the thing was as steady as a rock.

In early March 1943, at Tangmere, the then new Squadron Leader of 486 (NZ) Squadron, Des Scott, flew a Typhoon for the first time:

She roared, screamed, groaned and whined, but apart from being rather heavy on the controls at high speeds she came through her tests with flying colours...Applying a few degrees of flap we swung on down into the airfield approach, levelled out above the runway and softly eased down on to her two wheels, leaving her tail up until she dropped it of her own accord. We were soon back in her bay by the dispersal hut, where I turned off the petrol supply cock. After a few moments she ran herself out and with a spit, sob and weary sigh, her great three-bladed propeller came to a stop. So that was it: I was drenched in perspiration and tired out...

The performance limitations for speed were noted on the pilot's notes, published by the Air Ministry. Indicated airspeed for diving was set at 525 mph (845 km/h). The Typhoon could, if needed, be flown at 300 mph (480 km/h) with the cockpit "hood" open. Flight with undercarriage and flaps down could be made without incident, at the respective speeds of 210 and 155 mph (340 and 249 km/h). When the aircraft was carrying bombs, the speed could not exceed 400 mph (due to stability problems).

Notes for the management of the fuel system stated that indicated airspeeds (IAS) in excess of 380 mph (610 km/h) were not advisable when fitted with auxiliary drop tanks. Tanks were jettisoned at about 200 mph (320 km/h), but in an emergency, a release at 350 mph (560 km/h) was permitted. Tanks were to be ejected in straight and level flight only. General flying ability was positive. The maximum climbing rate was 185 mph (298 km/h) up to 16,000 ft (4,900 m) reducing speed by 3 mph (4.8 km/h) per 1,000 ft (300 m) above this mark. In stability terms, the aircraft was stable "directionally" and "laterally" but slightly unstable longitudinally, except at high speed, when it was just stable. Aileron control was light and effective up to maximum speed, but at very low speed response was sluggish, particularly when carrying ordnance. The elevator control was rather light and could not be used harshly. There was a tendency to "tighten up" in a looping aircraft. If "black out" conditions were accidentally induced in steep turns or aerobatics, the control column was to be pushed forward "firmly".

Stalling speeds were quite low. The typical Typhoon trait, as with most aircraft at the time, was to drop a wing sharply with flaps either up or down. The stalling speeds varied. The various loads depended on external fittings. All-up weight plus two 500 lb (230 kg) bombs (12,155 lb in total) with flaps up could induce a stall at 90–100 mph. With flaps down, stall was initiated at 70–75 mph. Normal all-up weight (11,120 lb) would see stall at 80–90 and 65–70 mph respectively. With all ammunition and nearly all fuel expended (9,600 lb) stall occurred at 75–80 and 65–70 mph.