Editing Hawker Typhoon (section)

===Sub-variants===
In 1943, one Typhoon, ''R7881'' was converted to a prototype night fighter (N.F. Mk. IB), fitted with [[aircraft interception radar]]  (A.I.) equipment, a special night-flying cockpit and other modifications.
Also in 1943, five Typhoons<ref group="nb">''R8889'', ''R8891'', ''R8925'', ''DN323'' and ''EJ906''</ref> were modified to "Tropical" standard by fitting of an air filter in a fairing behind the main radiator housing. Three<ref group="nb">''R8891'', ''DN323'' and ''EJ906''</ref> underwent trials in Egypt with [[No. 451 Squadron RAAF]], during 1943.<ref name="Thomas and Shores 1988"/>

The Typhoon FR IB was developed in early 1944 and was used as a tactical reconnaissance fighter. In this version the port inner cannon was removed and three (one forward-facing {{convert|14|in|mm|adj=on}} and two vertical five-inch) [[F24 camera]]s were carried in its place.{{refn|Pilots soon discovered that the aircraft yawed to the left when the cannon were fired because the recoil of the two cannon on the starboard wing was not properly balanced by the single cannon to port; as a result the starboard inner cannon was also removed from some aircraft.|group=nb}} Few FR IBs were built, and most served with [[No. 268 Squadron RAF|268 Squadron]], starting in July 1944. The aircraft was never popular with the pilots, who preferred the older [[North American P-51 Mustang|Mustang Is and IAs]], and the inherent engine and airframe vibrations meant that photos were invariably blurred. As a consequence of these problems, the FR IB was phased out in January 1945..{{Cn|date=March 2024}}