In Trail 25 we head to the south once more, to the west of Harlow, and to two wartime airfields; one of which played a major part in striking a blow at the very heart of the Nazi regime.
The county of Hertfordshire is an area popular with commuters to both London and the technological towns of Harlow and Bishops Stortford. Being north of London, it is also close to Stansted airport, itself an ex World War II airfield. Hertfordshire has some beautiful countryside, delightful little villages and quaint country pubs. It is also an area with a wealth of history.
Our first stop is a small airfield nestled in the heart of this beautiful countryside. It is situated north-east of the village that gives it its name, RAF Hunsdon.
RAF Hunsdon
Even before Hunsdon was built, it is referenced in some areas that the site was being used for a detachment of 107 Squadron Blenheims, then based at RAF Wattisham and later Leuchars. This may have been part of the ‘Scatter’ directive given to squadrons in the immediate period before war was officially declared, and was thought to occur between May 1939 and March 1941. However, there are no references to this in the official squadron files and so this action is doubted. However, if this were the case, then it would certainly suggest an early use of the site before it was developed into a fully operational airfield, and it may have been an indication that an airfield was on its way in the near future.
The site was earmarked for development in 1940, with construction occurring over the period October 1940 to March 1941, after which the first squadron moved in. It was built by various construction companies and incorporated two asphalt runways; the main running east-west reaching 1,750 yards in length after its later extension, with a second running north-east to south-west extended to 1,450 yards; both were built to the standard 50 yard width. Aircraft dispersals, maintenance and storage buildings consisted of eighteen ‘twin-engined’ hardstands; sixteen blister hangars (a mix of ‘Over’ (4) and ‘Extra Over’ (12)) and a Bellman hangar. There was also a fuel dump and accommodation buildings for up to 2,240 airmen and some 276 WAAFs, all located across eight dispersed sites.
A large number of operational units, (in excess of twenty-five) would pass through its doors throughout its relatively short life, providing Hunsdon with a multinational mixture of crews and a number of aircraft types.
The airfield itself lies within a stone’s throw of London and so its initial role was that of night fighter operations covering London and the south / east area.
The first recognised squadron to make its mark at Hunsdon was 85 Squadron on May 3rd 1941, transferring across from RAF Debden flying Defiants and Havoc MK.Is. The move across on the 3rd went smoothly with personnel and equipment being transferred across in lorries and 32 seat busses, the majority of personnel arriving later that day.
On arrival at Hunsdon, personnel of ‘A’ Flight were immediately billeted on the aerodrome close to their dispersals, whilst those of ‘B’ Flight were housed on Number 2 Site, located about a mile or so from the main airfield area. Personnel of both the Headquarters Flight and the servicing Echelon were billeted even further away, about four miles in fact, at Gilstone Park. The officers meanwhile, had the better accommodation, being billeted in a house called ‘Boningtons’ believed to be the former home of “Mr. Brooke Bond” the family of the P.G. Tea empire. It is thought that the family purchased the house in 1940, moving out of their London residency to avoid the blitz. Unfortunately, it was rather a short lived purchase as the property was requisitioned by the RAF not long after!
By the end of the 4th, all 85 Sqn personnel were in and unpacked at Hunsdon, and so night flying duties could commence straight away with patrols taking place over the Felixstowe area. Immediately, a Heinkel He.111 was vectored onto, and a skirmish took place in which both aircraft both gave and received machine gun fire. The Luftwaffe bomber came off worst though, and was last seen diving into cloud firing a white verey pistol, either as a resignation of the fight or possibly as a distress signal to any would be rescuers.
Over the next few nights further contacts were made and several Ju. 88s were either confirmed or claimed as shot down. The squadron was performing well, morale was high and all was looking good.
The night of the 13th could have been different for some though. On his return from a patrol, Fly. Off. Hemingway’s instruments failed and with little choice, he gave the order to bale out. After his operator, Sgt. Bailey, had departed the Havoc, Hemingway followed, both men landing in close proximity to each other in the grounds of Much Hadam Hall (a grade 1 listed building built in the early 1700s). Whilst both airmen were safe, Hemingway’s was not the model jump, as he came to rest in a tree in the grounds of the hall. Bailey fared little better, landing rather ungainly on a bucket not too far away. This was Hemingway’s third successful bale out of a stricken aircraft, his previous two both occurring during the Battle of Britain.
On May 17th, Wg. Cdr. Peter Townsend, now with a DSO, flew to Great Massingham, Flt. Lt. Marshall flew to Odiham to test the runway and Flt. Lt. Rabone flew to Heston from where he collected a special and secret Havoc which was to be tested by the squadron. The first flight of this new variant occurred on May 23rd, and was quickly followed by a second aircraft on the 28th, After this, they would then begin testing both aircraft as a new night flying platform.
This particular type of aircraft was the forerunner of what became known as the Turbinlite Havoc, a new design that was the brainchild of one Sidney Cotton.*3
With the help of William Helmore, Cotton took out two patents; GB 574970 and GB 574118, each one relating to this new idea. It would be Helmore (an Air Commodore) who would then develop the idea further turning it into what would become commonly known as the Turbinlite system.
Originally designated Air Target Illumination, Cotton’s idea was passed to the Alan Muntz Company, who in conjunction with G.E.C., developed it into what was at the time, the most powerful searchlight in the world, and one that would fit neatly into the nose of a Douglas Havoc, or Boston as it was known in the RAF.
The light was so powerful that it would require a staggering forty-eight batteries each stored in the bomb bay of the aircraft, adding an additional weight to the aircraft just short of 2,000lbs. The light was so strong (1,400 amps) that it would discharge in less than 12 seconds meaning its use was limited to short searches only.
The first full prototype Turbinlite aircraft fitted with the unit was Boston W8254 and was flown by Acting Squadron Leader A. Clouston of 1422 (Night Fighter) Flight formed at Heston on May 12th 1941. The Flight would then operate a number of these aircraft, along with several other types which included the only Turbinlite Mosquito; along with a Defiant, Wellington and Hurricane.
Heston was the home of Airwork, an aviation company set up by two ex-Cambridge students and soldiers of the great war, Sir Henry Nigel Norman and Alan Muntz. Their vision, was to create the best aerodrome near London, a dream that would cost Norman his life and Muntz to lose his son. Airwork would go through many changes during its life, taking on several Government contracts including a range of flying schools to train RAF pilots throughout the Second World War. These included RAF Digby, RAF Grangemouth, RAF Scone (Perth) and RAF Linton-on-Ouse.
Airwork would themselves modify a further four Bostons, with a further sixteen being modified by the Heston Aircraft Company. A third batch was then developed at RAF Burtonwood, giving a total of nine flights for training and ten operational squadrons comprising just short of 100 aircraft in all.
It was soon realised however, that the Bostons lacked firepower and so the company began to look at the Mosquito as a possible replacement aircraft. Only one Mosquito was modified (W4087, a Hatfield built F.II) at Heston, but this idea, unlike the Boston, failed to progress any further than the prototype stage, and no other aircraft were converted.
The Turbinlite project quickly gained pace, but the units wouldn’t be raised to squadron status until September of the following year. In preparation, ten special Havoc flights were created to train crews to operate the aircraft. The first of two, formed at Hunsdon (and the first of the ten) was 1451 (Fighter) Flight on May 22nd 1941. The Flight used several examples that included both Boston IIIs (AL469 and Z2280) and Havoc Is (AE470 and AW405). It also utilised a Cygnet and Tiger Moth for pilot training. By the end of the month, 85 Sqn had flown a total of 505 hours, 482 of them undertaken in Havocs, with 213 of these being on night flights.
On August 9th 1941, 85 Sqn were joined here at Hunsdon by 3 Sqn, one of the original three squadrons to have been formed by the Royal Flying Corp. Created on May 13th 1912, when the Air Battalion of the Royal Engineers was absorbed in to the month old Royal Flying Corps, 3 Sqn joined both 1 and 2 Squadrons as the oldest units to have operated in the RFC. As such, its history is long and very distinguished.
In Part 2 we see how the Turbinlite develops, and how, as the war goes on, the first of Mosquitoes arrive.