| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | Operation Black Buck - Summary |  |  |  |  |  |
| 3 | Mission | Target | Date | Primary Vulcan | Reserve Vulcan | Notes |
| 4 | Black Buck 1 | Port Stanley Airport runway | 30 April–1 May | XM598 (Reeve) | XM607 (Withers) | Performed; primary aircraft cabin failed to pressurise shortly after takeoff, replaced by reserve |
| 5 | Black Buck 2 | Port Stanley Airport runway | 3–4 May | XM607 (Reeve) | XM598 (Montgomery) | Performed |
| 6 | Black Buck 3 | Port Stanley Airport runway | 13 May | XM607 | XM612 | Cancelled before takeoff due to weather conditions |
| 7 | Black Buck 4 | Anti-aircraft radar | 28 May | XM597 (McDougall) | XM598 | Cancelled 5 hours into flight, due to a fault in the Victor fleet |
| 8 | Black Buck 5 | Anti-aircraft radar | 31 May | XM597 (McDougall) | XM598 (Montgomery) | Performed |
| 9 | Black Buck 6 | Anti-aircraft radar | 3 June | XM597 (McDougall) | XM598 (Montgomery) | Performed; primary aircraft forced to divert to Brazil due to a broken refuelling probe |
| 10 | Black Buck 7 | Port Stanley Airport stores and aircraft | 12 June | XM607 (Withers) | XM598 (Montgomery) | Performed |

Question: What were the primary and reserve aircraft for the Black Buck 3 mission?
Answer: Vulcans XM607 and XM612 were designated the primary and reserve aircraft, respectively.