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AHA !!The mystery is solved. Looking at Putnam' 'Bristol', page 319, I found this :-" . . . and No. 12657 (RH763), flown until 1959 at Boscombe Down for parachute recovery tests of the D.H. Spectre rocket assisted take-off unit."and this, from the De Havilland Aircraft Museum :-[URL unfurl="true"]https://www.dehavillandmuseum.co.uk/aircraft/de-havilland-super-sprite/[/URL]"The de Havilland Super Sprite, the first liquid-propellant rocket engine to have successfully completed a British Government Type-Approval Test, which was in full production for the Royal Air Force. The engine was fitted to the Vickers Valiant four-jet bomber within droppable containers."and a YouTube video :- [MEDIA=youtube]ZdLFSmgRFp8[/MEDIA]View: https://www.youtube.com/watch?v=ZdLFSmgRFp8cheers,Robin.
AHA !!
The mystery is solved. Looking at Putnam' 'Bristol', page 319, I found this :-
" . . . and No. 12657 (RH763), flown until 1959 at Boscombe Down for parachute recovery tests of the D.H. Spectre rocket assisted take-off unit."
and this, from the De Havilland Aircraft Museum :-
[URL unfurl="true"]https://www.dehavillandmuseum.co.uk/aircraft/de-havilland-super-sprite/[/URL]
"The de Havilland Super Sprite, the first liquid-propellant rocket engine to have successfully completed a British Government Type-Approval Test, which was in full production for the Royal Air Force. The engine was fitted to the Vickers Valiant four-jet bomber within droppable containers."
and a YouTube video :- [MEDIA=youtube]ZdLFSmgRFp8[/MEDIA]
View: https://www.youtube.com/watch?v=ZdLFSmgRFp8
cheers,
Robin.
