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| | Unreal Aircraft - Weird Wings - De Havilland DH.108 |
 | | On April 12, 1948, the aircraft set a new 100 km (62.1 mile) closed circuit speed record of 605.23 mph (974 km/h), flown by John Derry, and it was certain that it could better the top speed of the preceding aircraft. |
 | | Fifteen weeks later, a Russian Lavochkin La-176 broke Mach 1.0, these two claiming to be the first turbojets to break the sound barrier, although that speed had previously been exceeded by both the rocket-powered Bell X-1 (Mach 1.46) and the mixed power Douglas Skyrocket. |
 | | On September 9, 1948, again flown by John Derry, the aircraft reached Mach 1.0 in a dive between 40,000 and 30,000 ft. (12192 m to 9144 m) without any buffetting or instability, only some tightening of controls. |
| www.unrealaircraft.com /wings/dh108.php |
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