(Bristol) Blenheim @·AIRCRAFTUBE

  • Bristol<br>Blenheim
Bristol<br>Blenheim
    Bristol
    Blenheim
  • A Bristol Blenheim of 11 Sqn RAF
A Bristol Blenheim of 11 Sqn RAF
    A Bristol Blenheim of 11 Sqn RAF
  • 113 Sqn RAF<br>in Egypt
113 Sqn RAF<br>in Egypt
    113 Sqn RAF
    in Egypt
  • Bristol Blenheims of 14 Sqn RAF
Bristol Blenheims of 14 Sqn RAF
    Bristol Blenheims of 14 Sqn RAF
  • Bristol Type 142M Blenheim
Bristol Type 142M Blenheim
    Bristol Type 142M Blenheim
  • RAF 18 sqn over Rotterdam in 1941
RAF 18 sqn over Rotterdam in 1941
    RAF 18 sqn over Rotterdam in 1941
  • Type 142M Blenheim
Type 142M Blenheim
    Type 142M Blenheim
  • 211 Sqn RAF - Greece
211 Sqn RAF - Greece
    211 Sqn RAF - Greece
  • Bristol Blenheim - 248 Sqn RAF - 1940
Bristol Blenheim - 248 Sqn RAF - 1940
    Bristol Blenheim - 248 Sqn RAF - 1940
  • A Blenheim of 248 Sqn at RAF Northolt
A Blenheim of 248 Sqn at RAF Northolt
    A Blenheim of 248 Sqn at RAF Northolt
  • Bristol<br>Blenheim
Bristol<br>Blenheim
    Bristol
    Blenheim
  • RAF Bristol Blenheim
RAF Bristol Blenheim
    RAF Bristol Blenheim
  • Bristol Type 160 Blenheim V
Bristol Type 160 Blenheim V
    Bristol Type 160 Blenheim V
  • Bristol Blenheim - Indian Air Force
Bristol Blenheim - Indian Air Force
    Bristol Blenheim - Indian Air Force
  • Bristol Blenheim - 40 Sqn RAF
Bristol Blenheim - 40 Sqn RAF
    Bristol Blenheim - 40 Sqn RAF
  • 40 Sqn Blenheims at RAF Wyton
40 Sqn Blenheims at RAF Wyton
    40 Sqn Blenheims at RAF Wyton
  • Blenheims of 62 Sqn in Singapore in February 1941
Blenheims of 62 Sqn in Singapore in February 1941
    Blenheims of 62 Sqn in Singapore in February 1941
  • Bristol Blenheim
Bristol Blenheim
    Bristol Blenheim
  • A RAF Blenheim landing
A RAF Blenheim landing
    A RAF Blenheim landing
  • Bristol Blenheim
Bristol Blenheim
    Bristol Blenheim
  • Bristol Blenheim - 84 Sqn RAF
Bristol Blenheim - 84 Sqn RAF
    Bristol Blenheim - 84 Sqn RAF
  • Bristol Blenheim (RAF)
Bristol Blenheim (RAF)
    Bristol Blenheim (RAF)
  • A Blenheim of the Finnish Air Force
A Blenheim of the Finnish Air Force
    A Blenheim of the Finnish Air Force
  • A RAF Bristol Blenheim
A RAF Bristol Blenheim
    A RAF Bristol Blenheim
  • A RAF Blenheim
A RAF Blenheim
    A RAF Blenheim
  • Blenheim
Blenheim
    Blenheim
  • Blenheim Mk IV - 21 Sqn
Blenheim Mk IV - 21 Sqn
    Blenheim Mk IV - 21 Sqn
  • Type 160 Blenheim V
Type 160 Blenheim V
    Type 160 Blenheim V
  • Bristol Blenheim - Finnish Air Force Bristol Blenheim - Finnish Air Force
    Bristol Blenheim - Finnish Air Force

Bristol Blenheim

The Bristol Blenheim was a British light bomber aircraft designed and built by the Bristol Aeroplane Company that was used extensively in the early days of the Second World War.

It was adapted as an interim long-range and night fighter, pending the availability of the Beaufighter. It was one of the first British aircraft to have all-metal stressed-skin construction, to utilise retractable landing gear, flaps, a powered gun turret and variable-pitch propellers. A Canadian-built variant named the Bolingbroke was used as an anti-submarine and training aircraft.

The Blenheim Mk I outshone most biplane fighters in the late 1930s but stood little chance against the German Messerschmitt Bf 109 during daylight operations, though it proved successful as a night fighter. The Mark IV variant was equally unsuccessful in its daylight bombing role, suffering major losses in the early stages of the war.

Design and development

In 1934, Lord Rothermere, owner of the Daily Mail newspaper, challenged the British aviation industry to build a high-speed aircraft capable of carrying six passengers and two crew members. At the time, German firms were producing a variety of record-breaking high-speed designs, such as the Heinkel He 70, and Rothermere wanted to recapture the title of fastest civilian aircraft in Europe. Bristol had been working on a suitable design as the 'Type 135' since July 1933, and further adapted it to produce the Type 142 to meet Rothermere's requirements.

Named 'Britain First', this first flew at Filton on 12 April 1935, and proved to be faster than any fighter in service with the Royal Air Force at the time. The Air Ministry was obviously interested in such an aircraft and quickly sent out Specification B.28/35 for prototypes of a bomber version; the 'Type 142M' (M for military). The main change was to move the wing from a low-wing to a mid-wing position, allowing room under the main spar for a bomb bay. The aircraft was all-metal with two Bristol Mercury VIII air-cooled radial engines, each of 860 hp (640 kW). It carried a crew of three – pilot, navigator/bombardier and telegraphist/air gunner. Armament comprised a single forward-firing .303 in (7.7 mm) Browning machine gun outboard of the port engine and a .303 in (7.7 mm) Lewis Gun in a semi-retracting Bristol Type B Mk I dorsal turret firing to the rear. From 1939 onwards, the Lewis gun was replaced by the more modern .303 in (7.7 mm) Vickers VGO machine gun of the same calibre. A 1,000 lb (450 kg) bomb load could be carried in the internal bay.

To achieve its relatively high speed, the Blenheim had a very small fuselage cross-section, with its upper front glazing all at one angle in the form of a "stepless cockpit", that used no separate windscreen panels for the pilot. The pilot's quarters on the left side of the nose were so cramped that the control yoke obscured all flight instruments while engine instruments eliminated the forward view on landings. Most secondary instruments were arranged along the left side of the cockpit, with essential items like propeller pitch control actually placed behind the pilot where they had to be operated by feel alone. Like most contemporary British aircraft, the bomb bay doors were kept closed with bungee cords and opened under the weight of the released bombs. Because there was no way to predict how long it would take for the bombs to force the doors open, bombing accuracy was consequently poor.

The aircraft was ordered directly from the drawing board with the first production model serving as the only prototype. The service name then became Blenheim Mk I after the famous battle during the War of the Spanish Succession. Subsequent deliveries started on 10 March 1937, with 114 Squadron being the first squadron to receive the Blenheim. The aircraft was built under license by countries including Finland and Yugoslavia, which built 60 aircraft. Other countries bought it, including Romania, Greece and Turkey. Total production of the Blenheim Mk I in England was 1,351 aircraft.

Work on an extended-range reconnaissance version started as the Blenheim Mk II, which increased tankage from 278 gal (1,264 L) to 468 gal (2,127 L), but only one was completed. Another modification resulted in the Blenheim Mk III, which lengthened the nose, and thereby dispensed with the "stepless cockpit" format of the Mk.I in introducing a true windscreen in front of the pilot, to provide more room for the bombardier. This required the nose to be "scooped out" in front of the pilot to maintain visibility during takeoff and landing. However both of these modifications were instead combined, along with a newer version of the Mercury engine with 905 hp (675 kW) and the turret acquired a pair of Brownings instead of the Vickers K; creating the Blenheim Mk IV. A total of 3,307 were produced.

Another modification led to a long-range fighter version; the Blenheim Mk IF. For this role, about 200 Blenheims were fitted with a gun pack under the fuselage for four .303 in (7.7 mm) Brownings. Later, the Airborne Intercept (AI) Mk III or IV radar was fitted to some aircraft in use as night fighters; these were the first British fighters to be equipped with radar. Their performance was marginal as a fighter, but they served as an interim type, pending availability of the Beaufighter. About 60 Mk IVs were also equipped with the gun pack as the Mk IVF and were used by Coastal Command to protect convoys from German long-range bombers.

The last bomber variant was conceived as an armoured ground attack aircraft, with a solid nose containing four more Browning machine guns. Originally known as the Bisley, (after the shooting competitions held at Bisley), the production aircraft were renamed Blenheim Mk V and featured a strengthened structure, pilot armour, interchangeable nose gun pack or bombardier position, and yet another Mercury variant, this time with 950 hp (710 kW). The Mk V was ordered for conventional bombing operations, with the removal of armour and most of the glazed nose section. The Mk V, or Type 160, was used primarily in the Middle East and Far East.

The Blenheim served as the basis for the Beaufort torpedo bomber, which itself led to the Beaufighter, with the lineage performing two complete circles of bomber-to-fighter.

Operational history

On the day that war was declared on Germany, a Blenheim piloted by Flying Officer Andrew McPherson was the first British aircraft to cross the German coast and the following morning 15 Blenheims from three squadrons set off on one of the first bombing missions. With the rapid advances in technology which had taken place in the late 1930s, by then the aircraft was already obsolescent. The Blenheim was regarded as a pleasant aircraft to fly, although it did have some characteristics which could catch even experienced pilots by surprise. It had become heavier as extra service equipment was installed; much of this was found to be needed through operational experience. This, coupled with the rapid performance increases of fighters, had eclipsed the Blenheim's speed advantage.

The light armament of one .303 in (7.7 mm) Vickers VGO in the turret and one .303 in (7.7 mm) Browning machine gun in the port wing was seldom able to deter fighter opposition. Squadrons were forced to use several different improvisations in an attempt to provide better defensive armament, until officially sanctioned modifications were able to be introduced in early 1940. The Blenheim also proved to be vulnerable to flak, especially around the rear fuselage. Flexible, self-sealing liners had been fitted to the fuel tanks but they were still not fully protected against the 20 mm MG FF cannon carried by the Luftwaffe '​s Bf 109s and Bf 110s.

After France fell to Germany in June 1940, the Free French Air Force was formed at RAF Odiham in the form of Groupe Mixte de Combat (GMC) 1, consisting of a mixed bag of Blenheims and Westland Lysander liaison/observation aircraft, which eventually went to North Africa and saw action against the Italians and Germans.

The Battle of Britain

The Blenheim units operated throughout the battle, often taking heavy casualties, although they were never accorded the publicity of the fighter squadrons.

The Blenheim units raided German occupied airfields throughout July to December 1940, both during daylight hours and at night. Although most of these raids were unproductive, there were some successes; on 1 August five out of 12 Blenheims sent to attack Haamstede and Evere (Brussels) were able to bomb, destroying or heavily damaging three Bf 109s of II./JG 27 and apparently killing a Staffelkapitän identified as Hauptmann Albrecht von Ankum-Frank. Two other 109s were claimed by Blenheim gunners. Another successful raid on Haamstede was made by a single Blenheim on 7 August which destroyed one 109 of 4./JG 54, heavily damaged another and caused lighter damage to four more.

There were also some missions which produced an almost 100% casualty rate amongst the Blenheims; one such operation was mounted on 13 August 1940 against a Luftwaffe airfield near Aalborg in north-western Denmark by 12 aircraft of 82 Squadron. One Blenheim returned early (the pilot was later charged and due to appear before a court martial but was killed on another operation), the other 11, which reached Denmark, were shot down, five by flak and six by Bf 109s.

Blenheim-equipped units had been formed to carry out long-range strategic reconnaissance missions over Germany and German-occupied territories, as well as bombing operations. In this role, the Blenheims once again proved to be too slow and vulnerable against Luftwaffe fighters and they took constant casualties.

Cologne power stations raid

The action on 12 August 1941 was described by the Daily Telegraph in 2006 as the "RAF's most audacious and dangerous low-level bombing raid, a large-scale attack against power stations near Cologne." The raid was a low-level daylight raid by 54 Blenheims under the command of Wing Commander Nichol of No. 114 Squadron RAF. The Blenheims hit their targets (Fortuna Power Station in Oberaußem-Fortuna and the Goldenberg Power Station in Hürth-Knapsack) but 12 of the Blenheims were lost during the raid, 22% of those that took part, which was far above the sustainable loss rate of less than 5%. The England cricketer S/L Bill Edrich was awarded the DFC for his part in the raid.

Long-range fighter

The Bristol Blenheim was used by both Bomber and Fighter Commands. Some 200 Mk I bombers were modified into Mk IF long-range fighters with 600 (Auxiliary Air Force) Squadron based at Hendon, the first squadron to take delivery of these variants in September 1938. By 1939, at least seven squadrons were operating these twin-engined fighters and within a few months, some 60 squadrons had experience of the type. The Mk IF proved to be slower and less nimble than expected, and by June 1940, daylight Blenheim losses were to cause concern for Fighter Command. It was then decided that the Mk IF would be relegated mainly to night fighter duties where No. 23 Squadron RAF, which had already operated the type under nighttime conditions, had better success.

Night fighter

In the German night-bombing raid on London on 18 June 1940, Blenheims accounted for five German bombers, thus proving that they were better-suited for night fighting. In July, No. 600 Squadron, by then based at RAF Manston, had some of its Mk IFs equipped with AI Mk III radar. With this radar equipment, a Blenheim from the Fighter Interception Unit (FIU) at RAF Ford achieved the first success on the night of 2–3 July 1940, accounting for a Dornier Do 17 bomber. More successes came, and before long the Blenheim proved itself invaluable as a night fighter. Gradually, with the introduction of the Bristol Beaufighter in 1940–1941, the Blenheim was supplanted by its faster, better-armed descendant.

Eastern service

Blenheims continued to operate widely in many combat roles until about 1943, equipping RAF squadrons in the UK and in British bases in Egypt, Iraq, Aden, India, British Malaya, Singapore, and the Dutch East Indies. Many Blenheims were lost to Japanese fighters during the Malayan Campaign, battles for Singapore, and Sumatra. By that point, the traditional daylight light bomber role was more effectively carried out by suitable fighter-bombers, and the surviving examples were relegated to training duties. Nonetheless, the Blenheim played a role in preventing India from falling and recapturing Burma, destroying over 60 aircraft on the ground in raids on Bangkok early in the campaign.

One Blenheim pilot, Squadron Leader Arthur Scarf, was posthumously awarded the Victoria Cross for an attack on Singora, Thailand, on 9 December 1941. Another bomber of No. 60 Squadron RAF was credited with shooting down Lt Col Tateo Katō's Nakajima Ki-43 fighter and badly damaging two others in a single engagement on 22 May 1942, over the Bay of Bengal. Katō's death was a severe blow to the Imperial Japanese Army Air Force.

The Air Ministry's replacement for the Blenheim as a daylight bomber, another Bristol design, the Buckingham, was overtaken by events and changes in requirements and considered inferior to the de Havilland Mosquito, and as such did not see combat. The final ground-attack version – the Blenheim Mk V – first equipped 139 Squadron in June 1942. Eventually 13 squadrons – mainly in the Middle East and Far East – received this variant but operated them generally only for a few months.

Finland

In 1936, the Finnish Air Force ordered 18 Blenheim Mk Is from Britain and two years later, they obtained a manufacturing license for the aircraft. Before any aircraft could be manufactured at the Valtion lentokonetehdas (State Aeroplane Factory) in Finland, the Winter War broke out, forcing the Finns to order more aircraft from the UK. A further 24 British-manufactured Blenheims were ordered during the Winter War. After the Winter War, 55 Blenheims were constructed in Finland, bringing the total number to 97 aircraft (75 Mk Is and 22 Mk IVs).

The Finns also received 20 half-completed ex-Yugoslavian Mk IV Blenheims captured by Germany, together with manufacturing tools and production equipment, as well as a huge variety of spare parts. Yugoslavia had ceased production of the Mk I and commenced a production run of Mk IVs just prior to the April 1941 invasion.

The Finnish Blenheims flew 423 missions during the Winter War, and close to 3,000 missions during the Continuation War and Lapland War. Blenheim machine-gunners also shot down eight Soviet aircraft. Thirty-seven Blenheims were lost in combat during the wars.

After the war, Finland was prohibited from flying bomber aircraft by the Paris Peace Treaty, with Finland's Blenheims being placed into storage in 1948. However, in 1951, five Blenheims were re-activated for use as target tugs, with the last flight of a Finnish Blenheim taking place on 20 May 1958.

Variants

  • Blenheim Mk I : Three-seat twin-engined light bomber, powered by two 840 hp (630 kW) Bristol Mercury VIII radial piston engines, armed with a 0.303 in (7.7 mm) machine gun in the port wing, plus a 0.303 in (7.7 mm) Vickers K gun in the dorsal turret, maximum bombload 1,000 lb (450 kg). 1,552 built. Company designation Type 142M.
  • Blenheim Mk IF : Night fighter version, equipped with an AI Mk III or Mk IV airborne interceptor radar, armed with four 0.303 in (7.7 mm) machine guns in a special gun pack under the fuselage. About 200 Blenheim Mk Is were converted into Mk IF night fighters.
  • Blenheim Mk II : Long-range reconnaissance version with extra fuel tankage. Only one Blenheim Mk II was built.
  • Blenheim Mk III.
  • Blenheim Mk IV : Improved version, fitted with protective armour, powered by two 905 hp (675 kW) Bristol Mercury XV radial piston engines, armed with a 0.303 in (7.7 mm) machine gun in the port wing, plus two 0.303 in (7.7 mm) machine-guns in a powered operated dorsal turret, and two remotely controlled rearward-firing 0.303 in (7.7 mm) machine gun mounted beneath the nose, maximum bombload 1,000 lb (450 kg) internally and 320 lb (150 kg) externally. 3,307 built.
  • Blenheim Mk IVF Long-range fighter version, armed with four 0.303 in (7.7 mm) machine guns in special gun pack under the fuselage. About 60 Blenheim Mk IVs were converted into Mk IVF fighters.
  • Blenheim Mk V High-altitude bomber version, powered by two Bristol Mercury XV or XXV radial piston engines.

Operators

  • Australia : No. 454 and No. 459 Squadrons RAAF.
  • Canada : Article XV squadrons serving under direct command and control of the RAF, with RAF owned aircraft.
  • Independent State of Croatia : Eight captured ex-Royal Yugoslav Air Force Mk I aircraft were acquired by the ZNDH from the Germans after the April invasion in 1941. Several survived to the end of the War, with one retreating to Klagenfurt Austria upon the collapse of the Independent State of Croatia (NDH) in May 1945.
  • Finland : Finland was the first export order for the Blenheim and 18 Mark Is were delivered between 29 July 1937 and 27 July 1938. A licence to local produce the aircraft was granted in April 1938 but none of the 15 ordered from State Aircraft Factory were delivered before the Russian invasion. Twelve new Mark IVs were diverted from RAF production and these were followed by 12 former RAF Mark Is.
  • France : Free French Air Force (No. 342 Squadron RAF)
  • Greece : The Hellenic Air Force in its campaigns against Italy and Germany in 1940 and 1941, operated 12 Mk IVs (delivered before WWII without sights, bomb racks, wireless radios and intercoms) and 6 Mk Is (delivered in February 1941). In the Middle East, the Hellenic Air Force operated 19 Mk IVs (from January 1942 till January 1943) and 31 Mk Vs (from January 1943 till September 1943).
  • India : Royal Indian Air Force.
  • Italy : Blenheim Mk.IV N3589 of No. 40 Squadron RAF landed in error at Pantelleria on 13 September 1940 and was evaluated at Guidonia airfield near Rome. One more was captured in Yugoslavia while two were seized in Italian East Africa but were recaptured when this territory fell into British hands. N3589 might be the Mk.IV appearing in a non-flying role in the movie Un Pilota Ritorna (1942) directed by Roberto Rossellini.
  • New Zealand : No. 489 Squadron RNZAF.
  • Poland : Polish Air Forces in Great Britain : No. 307 Polish Night Fighter Squadron operated four aircraft of Mk Is and Mk IVs variants as trainers and hacks. One Blenheim IV rebuild to VIP transport variant was used as personal transport aircraft of the General Władysław Anders, commander of 2nd Polish Corps.
  • Portugal : Portuguese Air Force and Portuguese Naval Aviation.
  • Romania : Germany provided 6 captured ex-Royal Yugoslav Air Force Mk I aircraft to Romania in 1941,where they joined 12 Mk Is previously purchased from Britain.
  • South Africa : No. 15 Squadron SAAF.
  • Turkey : Turkish Air Force.
  • United Kingdom : Royal Air Force, Fleet Air Arm, Aeroplane & Armament Experimental Establishment, Royal Aircraft Establishment.
  • Yugoslavia : The Royal Yugoslav Air Force acquired 24 Mk I aircraft from RAF stocks and subsequently undertook a licensed production run of some 36 aircraft. Tooling up for the production of the Mk IV was about to commence when interrupted by the Invasion of Yugoslavia in April 1941. Some 20 partly completed airframes, as well as production tools and spare parts were subsequently sold by Germany to Finland.

Survivors

There is currently one Blenheim or Bolingbroke aircraft that is airworthy, it first flew following restoration for 29 minutes on 20 November 2014 following restoration at Duxford Imperial War Museum, Cambridgeshire, England. That airworthy Blenheim had been rebuilt from a scrapped Bolingbroke over a 12-year period, only to crash at an airshow at Denham within a month of completion in 1987.

A replacement Bolingbroke Mk IVT was rebuilt to flying status in just five years and painted to represent a Blenheim Mk IV in RAF wartime service. It began appearing at air shows and exhibitions in the UK, flying since May 1993 and was used in the 1995 film version of Shakespeare's Richard III. This aircraft crashed on landing at Duxford on 19 August 2003; the crash was feared to have made it a writeoff, but after extensive repair and conversion to the Mark I "Short nose" version by The Aircraft Restoration Company (ARC or ARCo) at Duxford, was displayed to the public on 30 May 2014.

In Canada, a number of other Bolingbrokes survived the war but were summarily consigned to the scrap heap. Postwar, enterprising farmers often bought surplus aircraft such as these for the scrap metal content, tyres for farm implements, and even for the fuel remaining in the tanks. Some surviving examples in Canada of the Bolingbroke can be traced back to this period. The Canadian Warplane Heritage Museum in Hamilton, Ontario is rebuilding a Bolingbroke to airworthy status. The Commonwealth Air Training Plan Museum in Brandon, Manitoba has restored the exterior of one Bolingbroke, painting it in the Air Training Plan yellow color. This particular aircraft is on display at a location on the Trans-Canada Highway in Brandon. A restored Bolingbroke is on static display at the British Columbia Aviation Museum in Victoria, British Columbia. The Canadian Museum of Flight at Langley Airport, Langley, British Columbia has on display the restored nose and cockpit section of a Bolingbroke, and holds the rest of an entire airframe in storage pending future restoration and display.

In Finland, the sole surviving original Blenheim in the world, a Mk IV registered as BL-200 of the Finnish Air Force, has been completely restored and is now on display at the Aviation Museum of Central Finland at Tikkakoski.

In the summer of 1996, a Bristol Blenheim Mk IVF was recovered from the sea, a few km off Rethymnon, Crete. The aircraft belonged to No. 203 Squadron RAF and was downed by friendly fire on 28 April 1941. The Blenheim was restored and moved to the Hellenic Air Force Museum.

In Arizona, the Pima Air Museum has a Bristol Bollingbroke IVT (RCAF #10076) on static display.

In Belgium, the Royal Museum of the Armed Forces and Military History has Bristol Fairchild Bolingbroke IV-T (9895) on static display.

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This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Bristol Blenheim of Wikipedia ( authors )

Bristol Blenheim

  • Role : Light bomber - Night fighter - Aerial reconnaissance.
  • Manufacturer : Bristol Aeroplane Company.
  • Designer : Frank Barnwell.
  • First flight : 12 April 1935.
  • Introduction : 1937.
  • Retired :
    • 1944 (United Kingdom).
    • 1958 (Finland).
  • Primary users :
    • Royal Air Force.
    • Royal Canadian Air Force.
    • Finnish Air Force.
    • Royal Yugoslav Air Force.
  • Number built : 4,422.
  • Variants :
  • Specifications (Blenheim Mk IV)

  • Crew : three.
  • Length : 42 ft 7 in (12.98 m).
  • Height : 9 ft 10 in (3.0 m).
  • Wingspan : 56 ft 4 in (17.17 m).
  • Wing area : 469 ft² (43.6 m²).
  • Wing loading : 30.7 lb/ft² (150 kg/m²).
  • Empty weight : 9,790 lb (4,450 kg).
  • Loaded weight : 14,400 lb (6,545 kg).
  • Maximum speed : 266 mph (231 kts, 428 km/h at 11,800 ft (3,600 m)).
  • Cruise speed : 198 mph (172 kts, 319 km/h).
  • Range : 1,460 mi (1,270 nmi, 2,351 km).
  • Service ceiling : 27,260 ft (8,310 m).
  • Rate of climb : 1,500 ft/min (7.6 m/s).
  • Power/mass : 0.13 hp/lb (.21 kW/kg).
  • Powerplant : Two Bristol Mercury XV radial engine.
  • Power : 920 hp (690 kW) each.
  • Propellers : Three-bladed Hamilton Standard propeller.
  • Armament :
    • One .303 in (7.7 mm) Browning machine gun in port wing.
    • One or two .303 in (7.7 mm) Browning guns in rear-firing under-nose blister or Nash & Thomson FN.54 turret.
    • Two .303 in (7.7 mm) Browning guns in dorsal turret.
    • Four 250 lb (113 kg) bombs OR
    • Two 500 lb (227 kg) bombs internally and eight 40 lb (18 kg) bombs externally.

— — — = = — — —

This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Bristol Blenheim of Wikipedia ( authors )
Bristol 142 Blenheim : Your comments on this subject
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    YouTube is a video-sharing website on which users can upload, view and share videos.

    Special thanks to all Youtube quality aviation vids providers, specially (Those I forgot, please excuse me or report) :

    Airboyd
    Andys Video
    Aviation videos archives
    Bomberguy
    Classic Aviation TV
    Historical Aviation Film Unit
    Horsemoney
    Jaglavaksoldier
    Joluqa Malta
    Just Planes
    Koksy
    Classic Airliners & Vintage Pop Culture
    Memorial Flight
    Octane130
    Okrajoe
    SDASM archives
    Spottydog4477
    The Aviators TV
    Valentin Izagirre Bengoetxea
    Vexed123
    VonBerlich
    Zenos Warbirds

    Bundesarchiv

    The German Federal Archives or Bundesarchiv are the National Archives of Germany.

    FAQ

    I don't see my comments any more!

    Please note that each page has it's own comment entry. So, if you enter a comment i.e. on the B-747, you will only see it on that related page.

    General comments are accessed via the "BLOG En" button.

    Comments are moderated, so please allow some delay before they appear, specially if you are outside Europe.

    Menus are developing below the page, because they are too long!

    But they remain accessible, for example by scrolling the mouse wheel, or with your finger (on the menu) on a smartphone or tablet.

    I see adds on all videos.

    Use a good free add remover software.

    The site is loading random pages at startup.

    We think it is a good way to bring back the memory of aircraft, persons or events sometimes quite forgotten.

    HELP PAGE

    Why this site?

    Discovery

    This website is dedicated to one's aeronautical passion (which I hope we share) and was realised mainly as an educationnal tool. Knowing that, you'll notice that each new visit brings random topics for the purpose of making new discoveries, some achievements or characters certainly not deserving the oblivion into which they have sometimes fallen.

    By these pages, we also want to pay tribute to all those who gave at one time or another, their lives or health in the name of freedom, aeronautical security or simply our comfort.

    Centralisation

    Internet is full of websites dedicated to aviation, but most are dedicated to subjects or periods that are very limited in space or time. The purpose of this site is to be as general as possible and thus treats all events as well as characters of all stripes and times while putting much emphasis on the most significant achievements.

    The same years saw birth of technologies like photography and cinema, thus permitting illustration of a large part of important aeronautical events from the start. Countless (and sometimes rare) media recently put online by enthousiasts finally give us access to these treasures, but the huge amount of information often makes things a little messy. A centralization effort is obviously most needed at this level.

    All persons who directly or indirectly contributed to the achievement or posting of such documents are here gratefully acknowledged.

    General

    Fluid website

    This site automatically fits the dimensions of your screen, whether you are on a desktop computer, a tablet or a smartphone.

    Bilingual website

    You can change the language by clicking on the flag in the upper left or via "Options" in the central menu. Of course, the videos remain in the language in which they were posted ...

    Browser compatibility

    The site is not optimized, or even designed to run on older browsers or those deliberately deviating from standards. You will most probably encounter display issues with Internet Explorer. In this case, it is strongly recommended installing a modern (and free!) browser that's respecting the standards, like Firefox, Opera, Chrome or Safari.

    Cookies and Javascript

    This site uses cookies and JavaScript to function properly. Please ensure that your browser is configured accordingly. Neither of these technologies, or other means shall in no case be used on the Site for the retention or disclosure of personal information about its Visitors. See the "Legal" page for more on this subject.

    Website layout

    Left menus

    Because of the lack of space on smartphones and small tablets, these menus are hidden. Everything is nevertheless accessible via the main menu option, located between the video and photo sections. This menu is placed there for compatibility reasons with some browsers, which play the videos over the menus.

    "Search" and "Latest" :
    The link "In Titles" restricts the search to the titles of different forms. Use this option if you are looking for a plane, a constructor, a pilot or a particular event that could have been treated as a subject.

    The link "In Stories" will bring you to a search in all texts (the "Story" tab) and will take more time. The search term will appear highlighted in green when opening the corresponding story.

    Would you believe, "Timeline" will show all subjects in chronological order.

    "Random" will reload the entire page with a new random topic.

    The bottom section keeps you abreast of the latest five entries. New topics are added regularly. Don't hesitate to come visit us often : add bookmark.

    Blogs and Comments central section

    Under the photos section comes the comments tabs window :

    You can enter general comments in your own language via one of the two buttons on the left (BLOG EN and BLOG FR). Note that these buttons are accessible regardless of the language to allow some participation in the other language.

    All comments are subject to moderation and will be published only if they comply with the basic rules of decorum, while remaining relevant to the purpose of this site.

    The third tab allows you to enter comments on the shown topic and is bilingual. Personal anecdotes, supplements and other information questions will take place here.

    The "Story" tab shows the explanatory texts. They are most often taken from Wikipedia, a site where we participate regularly.

    The "Data" tab is reserved for list of features and specifications.

    Right menus

    On a smartphone, the lack of space is growing and this menu is moved to the bottom of the page to give priority to videos and pictures.

    The top right icons are links to videos posted by third parties (on their own responsabilities) or by ourselves. The link below these icons will take you to the channel of the one who posted the video. Feel free to suggest other videos if you think they are of some interest (Use the BLOG button or the "Contact" link).