4 June 1982, Avro Vulcan B.2 XM597 operating on a SEAD operation against Argentine radar defences at BAM Malvinas diverted to Rio de Janeiro after its refueling probe broke during a routine fueling operation on its way back to Widewawake airfield, Ascension Island. The following comes from an article I wrote, with the assistance of Flt Lt Dave Castle, XM597's Nav Radar operator during the Black Buck raids, whom I interviewed some years back.
Black Buck 6 the night before: This time four AGM-45A Shrike ARMs were carried; each under-wing pylon was fitted with a cradle to carry two missiles each. Two of the missiles were optimised for attacking Westinghouse TPS-43 radars, with the other two programmed for targets of opportunity, such as the Sky Guard fire control radars aiding the Oerlikon Anti-Aircraft Artillery (AAA).
During this raid, the Argentine radar operators were alerted to the presence of the Vulcan, and they switched off their search radars when the aircraft was on approach to the islands. After 'loitering' overhead for forty minutes unsuccessfully attempting to entice the TPS-43 into action, Sqn Ldr MacDougall decided to take a risk by descending from the safe altitude of 16,000 feet to within range of the Oerlikon AAA. This ploy worked and the Vulcan was illuminated by a Sky Guard unit. Two Shrikes were fired, and the radar was destroyed. Four Argentine radar operators were killed.
After further unsuccessful taunting of the TPS-43 into activity, XM597 then made a hasty departure for the refuelling point that would take the aircraft home, as its fuel situation was critical. An RAF Nimrod supplied guidance for rendezvous with the Victor tanker for the last refuelling before reaching Ascension Island. On the first prod of the Vulcan's probe into the Victor's trailing basket, a loud bang was heard from the cockpit and fuel sprayed all over the windshield until dispersed by the slipstream. The tip of the probe had fractured, preventing further reception of fuel by the Vulcan.
The hapless crew found themselves in dire straits, as there wasn't enough aboard for the journey back to Ascension. Realising their predicament, Flg Off Chris Lackman did some hasty calculations and recommended that they fly at an altitude of 43,000 feet for more economic fuel consumption by the thirsty Olympus engines.
Flt Lt Castle recalled:
"…There were no pre-arranged or recognised diversions and the crew's brief was to ditch the aircraft should the final refuelling RV fail. Reluctant to ditch XM597 in the South Atlantic the crew elected to climb to 43 000ft for best range/endurance performance and headed west towards South America (and Brazil). Before entering Brazilian airspace, the unused Shrikes had to be jettisoned to prevent any potential embarrassment to the British Government and Brazilian authorities should land-fall be made. Unfortunately, one missile 'hung up', which was to create additional problems later. Before the aircraft could resume heading for the Brazilian coast, the Vulcan was then turned onto a southerly heading to avoid a small fishing fleet, exacerbating further the fuel dilemma."
"After de-pressurising at 43,000ft and jettisoning secret documents and film through the crew escape hatch, XM597 then descended to around 20,000ft. Fortunately, XM597 was able to unwittingly evade a pair of Força Aérea Brasileira F-5s that had been scrambled to intercept it."
A serious problem arose when sensitive documents were put in a canvas hold-all and hurled out the underside door; on closing, the door refused to seal, preventing full pressurization of the cabin and forcing the occupants to breathe pure oxygen. This had the effect of making the crew's voices (in the words of Sqn Ldr McDougall) "…sound like Donald Ducks!", which made communication with Brazilian Air Traffic Controllers considerably difficult! Contact was made with Rio de Janeiro 250 nautical miles out on a VHF distress frequency.
"With insufficient fuel for a procedural instrument approach into Rio's Galeão International Airport, XM597 was flown to the overhead where it commenced a spiral descent and visual approach. The aircraft was landed with only 2,000 lbs of fuel remaining in the tanks, insufficient for a missed approach procedure and visual circuit in a Vulcan."
On landing at Galeão Airport, the wayward Vulcan was immediately impounded by the Brazilian authorities. The crew was given the option to leave, but they decided to remain, although they were not allowed to leave the airbase without escort, as they had no passports or documentation with them.
The next day, news of the Vulcan's internment in Brazil had reached the front page of newspapers around the world, causing much embarrassment to the British government as the aircraft was still carrying live ammunition; the Shrike missile that refused to jettison from its pylon. On landing, the aircrew hung their anoraks over the missile to shield it from press photographers, who appeared en-masse shortly after the aircraft's arrival.
One of the conditions of the release of the aircraft and its crew was that it was not to take any further part in Operation Corporate; the Brazilians also stipulated that the Shrike missile was to remain in Brazil. Initially, the Brazilians incorrectly identified it as a "Sidewinder", and to hide the aircraft's true operational role, the British crew played along with this. One Brazilian newspaper article reporting the incident showed a photograph of the Vulcan with the weapon on the pylon circled and identified in the caption as a "míssil ar-ar Sidewinder".
The aircraft and crew remained with their Brazilian hosts for seven days before returning to Ascension on 9 June, the Shrike missile staying behind as requested. Three days later XM597 departed Wideawake Airfield for RAF Waddington, its brief part in the Falklands War over. For his sterling leadership during the Black Buck raids, Sqn Ldr MacDougall was awarded the Distinguished Flying Cross.
XM597's nose with the two Shrike missile mission symbols and the Brazilian flag.
MoF 155