From the same site (it's about the Mosquito btw)
[2.3] RECONNAISSANCE MOSQUITOS AT WAR
* If the Mosquito was having a hard time proving itself as a bomber, nobody had any misgivings over it as a reconnaissance aircraft. Number 1 PRU was finding itself much needed and correspondingly heavily taxed, and was effectively upgraded from a squadron to a wing in October 1942 by being split into five squadrons.
One of the squadrons, Number 540, was equipped with the Mosquito, which was preferred for long-range missions into hostile airspace over reconnaissance Spitfires, which simply didn't have the reach. The PR Mosquitos ranged all over Europe and returned with spectacular images that provided useful military intelligence as well as some propaganda value. Crisp photographs of major targets, such as the German battle cruiser GNIESENAU, were released to the press to demonstrate that the RAF could go where it chose with apparent impunity.
As the PR Mosquitos operated mostly by day and by themselves, they had the greatest need for speed and height, and were given priority for the Mosquitos with two-stage Merlins, beginning with the PR.VIII. They were reequipped with the improved machines through 1943, and the PR.Is and PR.IVs were all retired by October 1943.
A PR.VIII became the first Mosquito to photograph Berlin, on 8 March 1943. On 2 June 1943 a PR.VIII overflew the German technical research center at Peenemunde on the Baltic coast. Previous missions there had turned up nothing, but this flight brought back images of the new German "V-2" long-range ballistic missile. The installation was heavily bombed by the RAF in August.
The PR.IX's more powerful engines and greater fuel load were put to good use. During 1943, one made a "grand tour" of central Europe, flying out of RAF Benson and overflying Regensburg, Germany; Vienna, Austria; Budapest, Hungary; and Foggia, Italy, before landing in Catania, Sicily. The trip covered 3,060 kilometers (1,900 miles), took 6 hours 30 minutes flying time, with an average speed of 407 KPH (292 MPH). The Mosquito ran out of gas before it could taxi to its parking spot.
In the winter of 1943:1944, PRU Mosquitos began to reach for higher altitude in order to evade improved defenses. This led to the eight PR.IXs modified with uprated Merlins and four-bladed propellers, but the height and cold were hell on both crews and aircraft. The pressurized PR.XVI was designed in response, but various teething problems kept it out of service until May 1944.
The handful of long-winged PR.32s were up to the task, but by the time they got into service there wasn't much of a task left, at least in Europe. This was fortunate for the PRU, since by late 1944 the Mosquito was beginning to encounter the Messerschmitt Me-262 jet fighter, which could easily outrun even the quick Mosquito. Fortunately for the Allies, the Me-262 was too little and too late, with most of those produced usually grounded for lack of fuel.
Mosquitos were first sent to the Far East in the spring of 1943, performing reconnaissance sorties from Calcutta over Southeast Asia. The ultimate reconnaissance Mosquito, the PR.34, began flying out of the Cocos Islands, in the Indian Ocean south of Sumatra, in July 1944 to overfly Japanese installations in Southeast Asia.
Kris