Quote
----------------
I seem to remember that the Trident was allowed to use reverse very shortly before touchdown
----------------
I recall from somewhere that the rate of descent was so rapid that the engineer had to increase cabin pressure prior to the descent otherwise the aircraft would over take the cabin
The main gear could also be used in isolation as a spreedbrake, however I recall that this was discontinued as it was considered an accident waiting to happen.
luvverly old beastie was the Trident