Originally Posted by
rog747
I was not aware of that on the BOAC RR 707's, but if you open the reversers on a PW JT3D they have fan cold and hot end sliding cowls, and very often one would not fully close up after landing.
The RR engine on the 707 had cascade type reverser built by RR
(the DC8 43 Conway application was different with a Douglas transiting ring thrust reversers and exhaust silencers)
Interesting, thanks for that !