My old Dad said this about this Beverley
“The Beverley with the staging by the left i/b was if I recall correctly was XM104.
We changed that engine seven times before we got a good one.
Each test flight within a few minutes the new engine failed, once the aircraft had bareley left the runway and was about 200 feet up, I actually saw it auto feather with clouds of smoke from the. exhausts.
It was said that a truck was waiting at the Bristol engine works for one to come off test. It was taken directly to R A F Lynham (spelling ?), loaded on a Britannia and flown out to R A F Changi.
When unloaded it was brought to where the aircraft is parked. When installed, runs O K, it lasted about nine minutes on test flight.
It turned out that the oil spec had been changed and the Centaurus, being a sleeve valve type, took a dim view of this and in each case the Master cylinder sleeve valve seized and sheared the drive crank.
Oddly enough the other engines on the fleet ( four aircraft) seemed to be as O K as they ever where so it had to be something to do with perhaps mods at the Bristol Factory.
It was said that if filled with fuel and oil it would run out of oil before the fuel was exhausted even with two tanks holding about 100 gallons in the wing center section that could be hand pumped to the individual engine tanks.
Another version was the aircraft was good for Old Navigators, the could navigate out and follow the oil slick back

))”
I too believe that the RAFM committed a crime when they cut up their Bev
Rgds Cking