HardThrasher
Published 5 Mar 2026In the late Cold War, Britain and the United States tried to build the ultimate low-level supersonic strike aircraft. The result was two of the most ambitious aviation programmes ever attempted: the BAC TSR-2 and the General Dynamics F-111 Aardvark. Both aircraft were designed to solve the same terrifying problem. Soviet surface-to-air missiles had made high-altitude bombing almost suicidal. The next generation of bombers would have to fly low and fast, automatically following the terrain, navigating using primitive onboard computers, and delivering nuclear or conventional weapons deep inside enemy territory. In theory, these aircraft would be revolutionary.
In practice … things went wrong.
The TSR2 programme became one of the most controversial cancellations in British aviation history. Plagued by spiralling costs, technical ambition far beyond the computers of the era, and a labyrinth of government bureaucracy, the aircraft was cancelled in 1965 after only a handful of test flights. Meanwhile the American F-111 survived the same technological challenges and political battles — but only just. Development disasters, crashes, exploding engines, and staggering cost overruns nearly killed the programme multiple times before the aircraft finally entered service.
In this video we explore:
• Why the TSR-2 was so technologically ambitious
• How terrain-following radar and early flight computers nearly broke both projects
• The political battles inside Whitehall and Washington
• Why the F-111 Aardvark survived when TSR2 did not
• And what these aircraft reveal about Cold War military technology and procurement
The TSR2 and F-111 weren’t just aircraft. They were early attempts at something closer to a flying computer, built decades before modern electronics made such systems reliable. And that ambition nearly destroyed both programmes.
References
1. p.129-169 Bartlett, C.J. (1972). “The Impact of Duncan Sandys: 1957–62”. In: The Long Retreat. Palgrave Macmillan or if you prefer TNA DO 35/6550
2. p.23, TSR2 Britain’s Lost Bomber, Burke, The Crowood Press, 2010 (2nd Ed. 2020)
3. p.319, TSR2 Britain’s Lost Bomber, Burke, The Crowood Press, 2010 (2nd Ed. 2020)
4. P.13 F-111 Aardvark, Davies & Thornborough, Crowood Press, 1997
5. https://en.wikipedia.org/wiki/LEO_(co…)
6. p.15 F-111 Aardvark, Davies & Thornborough, Crowood Press, 1997
7. p.90 TSR2 Britain’s Lost Bomber, Burke, The Crowood Press, 2010 (2nd Ed. 2020)
8. p.5 General Dynamics F-111 Aardvark, Davies, Osprey, 2013
9. Vickers-Armstrongs (Aircraft) Ltd, Report AERO/S & C/047, Sept. 1960, Brooklands Museum Archives.
10. P.19 F-111 Aardvark, Davies & Thornborough, Crowood Press, 1997
11. P.264 TSR2 Britain’s Lost Bomber, Burke, The Crowood Press, 2010 (2nd Ed. 2020)
12. National Archives – DEFE 13/285 and on – there’s a hell of a lot here, the paper you’re after is called Short Comings of the TSR-2 written in October 1964
13. p.80-87 TSR Precision Attack to Tornado, Forbat, The History Press, 2012
14. p.101 TSR Precision Attack to Tornado, Forbat, The History Press, 2012
15. p.90-91 TSR Precision Attack to Tornado, Forbat, The History Press, 2012
16. p.31 F-111 Aardvark, Davies & Thornborough, Crowood Press, 1997
17. p.49 F-111 Aardvark, Davies & Thornborough, Crowood Press, 199
March 6, 2026
How Not to Build a Plane – TSR2 vs F-111
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