1. Sabre, see North American F-86 Sabre
2. SAMs (surface-to-air missiles), 1
3. Sandys, Duncan: scandal (1963), 1;
   1. war service, 1;
   2. White Paper (1957), 1, 2, 3, 4, 5, 6, 7, 8
4. Sapphire engine, see Armstrong Siddeley Sapphire, Bristol Siddeley Sapphire
5. Sargent, Eddie, 1
6. Saunders-Roe, 1
7. Saunders-Roe Princess flying boat, 1, 2, 3, 4
8. Saunders-Roe SR. A/1, 1
9. Saunders-Roe SR.177, 1
10. Sayer, Gerry, 1
11. Schneider Trophy, 1, 2
12. Sea Fury, see Hawker Sea Fury
13. Sea Harrier, see British Aerospace Sea Harrier
14. Sea Hawk, see Supermarine Sea Hawk
15. Sea Venom, see de Havilland Sea Venom
16. Sea Vixen, see de Havilland Sea Vixen
17. Seal, see Fairey Seal
18. Seamew, see Short Seamew
19. secrecy, 1
20. SEPECAT Jaguar, 1, 2
21. Shackleton, see Avro Shackleton
22. Shah of Persia, 1
23. Sheffield, Arthur, 1
24. Shenstone, Beverley, 1
25. Shooting Star, see Lockheed P-80 Shooting Star
26. Short Brothers and Harland, 1, 2, 3, 4
27. Short S.A.4 Sperrin, 1, 2, 3
28. Short S.B.5, 1
29. Short S.C.1, 1
30. Short Seamew, 1
31. Short Skyvan 1, 2
32. Shute, Nevil, 1, 2, 3
33. Sidcup & Kentish Times, 1
34. Silver City Airways, 1
35. Skyray, see Douglas Skyray
36. Skystreak, see Douglas Skystreak
37. Skyvan, see Short Skyvan
38. Society of British Aircraft Constructors (SBAC): ban on supersonic bangs, 1;
    1. Farnborough air shows, 1, 2, 3, 4, 5, 6, 7;
    2. Radlett air shows, 1, 2, 3, 4;
    3. Vulcan roll prohibition, 1n
39. sound barrier: compressibility, 1, 2, 3, 4, 5, 6, 7;
    1. Farnborough air show (1952), 1;
    2. first broken, 1, 2;
    3. Hunter’s performance, 1;
    4. Mach numbers, 1;
    5. mythic status, 1, 2, 3, 4;
    6. wing shape, 1, 2
40. Sound Barrier, The (film), 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
41. speed records, see records
42. Sperrin, see Short S. A.4 Sperrin
43. Spirit, see Northrop B-2 Spirit
44. Spitfire, see Supermarine Spitfire
45. Stalin, Joseph, 1, 2
46. Stansted, 1
47. Starfighter, see Lockheed F-104 Starfighter
48. starter cartridges, 1, 2
49. Stiletto, see Douglas Stiletto
50. Store, Gordon, 1
51. Strategic Air Command, 1
52. Strategic Defence Review, 1
53. Stratocruiser, see Boeing 377 Stratocruiser
54. Sud Aviation Caravelle, 1
55. Sud-Ouest 9000 Trident, 1
56. Suez (1956), 1, 2, 3, 4
57. Sukhoi Su-47 Berkut, 1
58. Summers, Joseph ‘Mutt’, 1, 2, 3n
59. Sun Times, Owen Sound, 1, 2
60. Super Constellation, see Lockheed Super Constellation
61. Super Sabre, see North American F-100 Super Sabre
62. Supermarine, 1, 2, 3
63. Supermarine Attacker, 1, 2, 3
64. Supermarine Sea Hawk, 1
65. Supermarine Spitfire: aerobatics, 1, 2;
    1. combat missions, 1;
    2. Critical Mach Number, 1;
    3. mock combat, 1, 2;
    4. performance, 1;
    5. production, 1;
    6. retirement, 1;
    7. speed, 1, 2;
    8. testing, 1, 2, 3, 4n;
    9. wing design, 1
66. Supermarine Swift: accidents, 1;
    1. design, 1;
    2. engine, 1;
    3. failure, 1, 2, 3, 4;
    4. at Farnborough air show, 1;
    5. RAF service, 1, 2, 3;
    6. testing, 1;
    7. world air-speed record, 1, 2, 3
67. Supermarine Type 510, 1
68. Supermarine Type 529, 1
69. Swallow, see de Havilland DH.108 Swallow
70. swept-wing design: Armstrong Whitworth project, 1;
    1. development from, 1;
    2. DH.108, 1, 2, 3;
    3. DH.110, 1, 2, 3;
    4. German research, 1;
    5. Hunter, 1;
    6. M.52 project, 1, 2;
    7. supersonic flight, 1, 2;
    8. Swift, 1;
    9. Type 510, 1
71. Swift, Ralph, 1
72. Swift, see Supermarine Swift