Ah the Caravelle - Cockpit and Nose designed by de Haviland, Power by RR Avons. I would love to wander around a restored one as many happy hours and one very scary 10 Minutes despatching Caravelles out of Gatwick in the 1970's.
Although to some extent the Happy bit is due that era being viewed through the rose tinted filter of memory!
At take off power made a 1-11 seem quiet :-)
DIH