The FAIREY BARRACUDA was a British carrier- borne torpedo and dive
bomber used during the Second World War , the first of its type used
by the Royal Navy\'s
Fleet Air Arm to be fabricated entirely from
metal . It was introduced as a replacement for the Fairey Swordfish
* 1 Design and development
* 2 Operational history
* 2.1 British service * 2.2 Canadian service
* 3 Surviving aircraft * 4 Variants * 5 Operators * 6 Specifications (Barracuda Mk II) * 7 See also
* 8 References
* 8.1 Notes * 8.2 Citations * 8.3 Bibliography
* 9 External links
DESIGN AND DEVELOPMENT
The Barracuda resulted from
Air Ministry Specification S.24/37 issued
in 1937 for a monoplane torpedo bomber to meet Operational Requirement
OR.35. Of the six submissions, the designs of
The Barracuda was a shoulder-wing cantilever monoplane with an oval, all-metal fuselage . It had a retractable landing gear and non-retracting tailwheel. The hydraulically -operated main landing gear struts were of an "L" shape and retracted into a recess in the side of the fuselage, with the wheels held in the wing. A flush arrestor hook was fitted ahead of the tail wheel. The crew of three were in tandem under a continuous glazed canopy. The pilot had a sliding canopy and the other two crew members' canopy was hinged. The two rear-crew had alternate locations in the fuselage, with the navigator having bay windows below the wings for downward visibility. The wings had large Fairey-Youngman flaps that doubled as dive brakes . Originally fitted with a conventional tail, flight tests suggested stability would be improved by mounting the stabiliser higher, similar to a T-tail , which was implemented on the second prototype. For carrier stowage, the wings folded back horizontally at the roots; the peculiar small vertical protrusions on the upper wingtips held hooks that attached to the horizontal stabilizers. A Barracuda Mk II carrying an 18-inch (46 cm) aerial torpedo . The ASV radar "Yagi" antennae are visible above the wings.
The Barracuda was originally intended to use the
Rolls-Royce Exe X
block , sleeve valve engine, but production of this powerplant was
abandoned, which delayed the prototype's trials. The prototypes
eventually flew with the lower-powered 12-cylinder Vee type
Rolls-Royce Merlin 30 engine (1,260 hp/940 kW) and a three-bladed de
Havilland propeller. Further experience with the prototypes and the
first production machines (BARRACUDA MK I) revealed the aircraft to be
underpowered as a result of the weight of extra equipment that had
been added since the initial design. Only 30 Mk Is were built
(including five by
The BARRACUDA MK III was the Mk II optimised for anti-submarine work, with the metric wavelength ASV set replaced by a centimetric variant , the scanner for which was housed in a blister under the rear fuselage. 852 Mk IIIs were eventually produced (406 by Fairey, 392 by Boulton Paul). A total of 2,607 of all marks of Barracuda were built. A Barracuda Mk. V; notice the squared off wing tips and the enlarged radiator and spinner for the Griffon engine. The lack of the larger fin and wing radar pod suggests that this is the prototype. Stockport-built Barracuda V with final enlarged pointed fin at Ringway in May 1946
The BARRACUDA MK IV never left the drawing board; the next and final
variant was the BARRACUDA MK V, in which the Merlin powerplant was
replaced with the
Early Merlin 30-powered Mk 1 Barracudas were underpowered and suffered from a poor rate of climb. Once airborne, however, the type proved easy to fly. Trials of the Mk 1 at Boscombe Down in October 1941 showed a weight of 12,820 lb (5,830 kg) when equipped with 1,566 lb (712 kg) torpedo; at this weight the Mk 1 showed a maximum speed of 251 mph (405 km/h) at 10,900 ft (3322 m), a climb to 15,000 ft (4572 m) took 19.5 minutes, with a maximum climb rate of 925 fpm (4.7 m/s)at 8,400 ft (2,560 m), and a 19,100 ft (5,822 m) service ceiling.
The later Mk II had a more powerful Merlin 32 with a 400 hp (300 kW) increase in power. Boscombe Down testing of the Mk II in late 1942, at 14,250 lb (6,477 kg) showed a climb to 10,000 ft (3048 m) in 13.6 minutes, with a maximum climb rate of 840 fpm (4.3 m/s) at 5,200 ft and an effective ceiling of 15,000 ft (4,572 m). Further testing at Boscombe Down in June 1943, showed a maximum range, with either a 1,630 lb (750 kg) torpedo or a single 2,000 lb bomb (909 kg), of 840 statute miles (1,355 km), and a practical range of 650 statute miles (1,048 km), while carrying 6 x 250 lb (114 kg) bombs reduced the range to 780 miles (1,258 km) and 625 miles (1,008 km), respectively.
Pilots came to appreciate the powerful flaps / airbrakes; carrier landings were simple due to the flaps and good visibility from the cockpit. Retracting the airbrakes at high speeds, whilst simultaneously applying rudder caused a sudden change in trim which could throw the aircraft into an inverted dive. This proved fatal on at least five occasions during practice torpedo runs, but the problem was identified, and appropriate pilot instructions issued, before the aircraft entered carrier service.
During the earlier part of its service life, the Barracuda suffered a
fairly high rate of unexplained fatal crashes, often involving
experienced pilots . In 1945 this was traced to small leaks
developing in the hydraulic system. The most common point for the leak
was at the point of entry to the pilot's pressure gauge and was
situated such that the resulting spray went straight into the pilot's
face. The chosen hydraulic fluid contained ether and as the aircraft
rarely were equipped with oxygen masks (and few aircrew wore them
below 10,000 ft/3,000 m anyway) the pilot quickly became unconscious
leading to a crash. An
An 830 Naval Air Squadron Barracuda taking off from Furious at the start of Operation Mascot. The aircraft is carrying a 1600 lb bomb.
The first Barracudas entered service on 10 January 1943 with 827 Squadron and were deployed in the North Atlantic. A total of 24 front-line squadrons were eventually equipped with Barracudas. From 1944 onwards, the Mk IIs were accompanied in service by radar-equipped, but otherwise similar, Mk IIIs, which were used for anti-submarine work.
The Barracuda first saw action with 810 Squadron aboard HMS Illustrious off the coast of Norway in July 1943 before deploying to the Mediterranean to support the Salerno landings . The following year they entered service in the Pacific Theatre .
Royal Air Force
Barracudas were used as dive bombers and played a part in a major attack on the German battleship Tirpitz . On 3 April 1944 (Operation Tungsten ), 42 aircraft from British carriers HMS Victorious and Furious scored 14 direct hits on Tirpitz with 1,600 lb (730 kg) and 500 lb (230 kg) bombs at the cost of one bomber. The attack disabled Tirpitz for over two months. However, the slow speed of the Barracudas contributed to the failure of the Operation Mascot and Operation Goodwood attacks on Tirpitz during July and August.
From April 1944, Barracudas of No 827 Squadron aboard Illustrious started operations against Japanese forces, taking part in raids against Sabang in Sumatra ( Operation Cockpit ). The Barracuda's performance was reduced by the high temperatures of the Pacific, with its combat radius being reduced by as much as 30%, and the torpedo bomber squadrons of the fleet carriers of the British Pacific Fleet were re-equipped with Grumman Avengers .
The Barracuda's primary problem in the Pacific was the need to fly over Indonesian mountain ranges to strike at targets on the eastern side of Java, which necessitated a high-altitude performance that the Barracuda's low-altitude-rated Merlin 32 engine with single stage supercharger could not provide. Additionally, carrying maximum underwing bomb loads caused extra drag which further reduced performance over a Barracuda armed with a torpedo. However the Light Fleet Carriers of the 11th ACS which joined the BPF in June 1945 were all equipped with a single Barracuda and single Corsair squadron, so by VJ day the BPF had five Avenger and four Barracuda squadrons embarked on its carriers.
Barracudas were used to test several innovations including RATO G rockets for takeoff and a braking propeller which slowed the aircraft by reversing the blade pitch .
The Barracuda continued in Fleet Air Arm service until the mid-1950s, by which time they were all replaced by Avengers.
The Royal Canadian Navy took delivery on 24 January 1946 of 12 radar-equipped Mk II aircraft; this was a Canadian designation, in British service these were the Mk. III. The first acquired aircraft were assigned to the newly formed 825 Sqn. aboard aircraft carrier HMCS Warrior . Canadian aircraft mechanics had been trained in the UK during the war serving on British aircraft carriers, notably HMS Puncher and Nabob which along with some Canadian pilots, the RCN crewed and operated for the RN. Warrior paid off in 1948 and returned to Britain along with the Barracuda aircraft.
Over 2500 Barracudas were delivered to the Fleet Air Arm, more than
any other type ordered by the
Barracuda Two prototypes (serial numbers P1767 and P1770) based on
the Fairey Type 100 design. Mk I First production version, Rolls-Royce
Merlin 30 engine with 1,260 hp (940 kW), 30 built Mk II Upgraded
Merlin 32 engine with 1,640 hp (1,225 kW), four-bladed propeller, ASV
II radar, 1,688 built Mk III
Anti-submarine warfare version of Mk II
with ASV III radar in a blister under rear fuselage, 852 built Mk IV
Mk II (number P9976) fitted with a
* French Air Force - Postwar
* No.860 Squadron (Dutch) Fleet Air Arms
810 Naval Air Squadron
SPECIFICATIONS (BARRACUDA MK II)
Orthographic projection of the Barracuda Mk.II, with wings unfolded and folded. Profile detail of the Griffon-engined Barracuda Mk.V.
Data from Fairey Aircraft since 1915
* CREW: 3
* LENGTH: 39 ft 9 in (12.12 m)
* WINGSPAN : 49 ft 2 in (14.99 m)
* HEIGHT: 15 ft 2 in (4.62 m)
* WING AREA: 405 ft² (37.62 m²)
* EMPTY WEIGHT : 9,350 lb (4,250 kg)
* LOADED WEIGHT: 13,200 lb (6,000 kg)
* MAX. TAKEOFF WEIGHT : 14,100 lb (6,409 kg)
* POWERPLANT : 1 ×
Rolls-Royce Merlin 32 liquid-cooled
* MAXIMUM SPEED : 228 mph (198 kn, 367 km/h) at 1,750 ft (533 m) * CRUISE SPEED : 195 mph (170 kn, 314 km/h) at 5,000 ft (1,524 m) * RANGE : 686 mi (597 nmi , 1,104 km) with 1,620 lb (736 kg) torpedo * SERVICE CEILING : 16,600 ft (5,080 m) * WING LOADING : 32.6 lb/ft² (159 kg/m²) * POWER/MASS : 0.12 hp/lb (0.20 kW/kg) * CLIMB TO 5,000 FT (1,524 M): 6 min
* GUNS: 2 × 0.303 in (7.7 mm) Vickers K machine guns in rear cockpit * BOMBS: 1× 1,620 lb (735 kg) aerial torpedo or 4× 450 lb (205 kg) depth charges or 6× 250 lb (110 kg) bombs
Aircraft of comparable role, configuration and era
* ^ All aircraft are adversely affected by increased temperature and humidity. The effect is to lower engine output and increase the takeoff run. Additionally, windless conditions are common very near the equator, further increasing the takeoff run for carrier aircraft. * ^ " Illustrious then exchanged her Barracudas for the Avengers of 832 and 851 before the next operation, an attack on the oil refineries at Soerbaya, Java. For this strike, the aircraft would have to fly across the breadth of Java. The mountainous spine of the island averages 10,000 ft in height, and this minimum height, coupled with the distance to be flown, about 240 miles, prohibited the use of the essentially low altitude Barracuda."
* ^ Taylor 1974, p. 313. * ^ Taylor 1974, p. 314. * ^ Bridgman, Leonard. Jane's Fighting Aircraft of World War II. New York: Crescent Books, 1988. ISBN 0-517-67964-7 . * ^ A B Mason 1998, pp. 294, 306. * ^ Air Ministry, p. 19; at a weight of 13,900 lb, the normal takeoff weight with a 1,630 lb torpedo, the time to climb to 10,000 ft was 12.57 minutes, and climb rates were calculated with the maximum continuous power of the Merlin 32 engine, rather than the 5 minute combat rating. * ^ Mason 1998, p. 295. * ^ A B Brown 1980, pp. 105–106. * ^ Popham 1974, p. 163. * ^ Kilbracken 1980, p. 197. * ^ Lord Kilbracken 1980, p. 203. * ^ Willis 2009, pp. 72–73. * ^ Jefford 2001, Chapter The Squadrons. * ^ Halley 1988, pp. 411, 436, 451, 452, 457. * ^ Willis 2009, pp. 74–75. * ^ Gunston 1995 * ^ Roskill 1961, pp. 156, 161–162. * ^ Willis 2009, p. 75. * ^ "Effect of temperature and altitude on airplane performance." pilotfriend.com. Retrieved: 26 September 2010. * ^ Willis 2009, pp. 75–76. * ^ Brown 1971, p. 257. * ^ Harrison 2002, p. 29. * ^ Watson, Graham. "Royal Navy: Fleet Air Army , August 1945." orbat.com, v.1.0 7 April 2002. Retrieved: 17 April 2010. * ^ Thetford 1982, pp. 162, 172. * ^ Lewis 1959, p. 112. * ^ Lewis 1959, p. 124. * ^ Taylor 1974, p. 325. * ^ A B Thetford 1978, pp. 162–163.
* Brown, Eric, CBE, DCS, AFC, RN.; William Green, and Gordon
Swanborough. "Fairey Barracuda". Wings of the Navy, Flying Allied
Carrier Aircraft of World War Two. London: Jane's Publishing Company,
1980, pp. 99–108. ISBN 0-7106-0002-X .
* Brown, J. David.