On 2 March 1954, Tudor I G-AGRI, belonging to a young Freddie Laker's Air Charter, Ltd, was flying 9500ft near Paris on a freight trip from London to Bahrein when it entered cloud. Slight icing was experienced, and the de-icing and anti-icing systems were deployed, due to which the Indicated Air Speed fell from 155 to 135 kt. The captain maintained altitude via electronic control. This capability, built into the Tudor's SEP4 by its now forgotten manufacturer, Smith's Instruments, was developed from the military requirement a bomber's bombsight be able to fly the plane in the targeting run. It was enormously convenient to be able to correct course and altitude via a single knob, or "joystick," as we would say now, but it was also fuel efficient. Taking the plane off autopilot would inevitably lead to course and engine power adjustments, and gas is money. This might, in fact, be why Captain J. M. Carreras did not increase engine power, although the final report notes that "He did not again consult the airspeed indicator." (It is likely that there was no stall warning indicator, as these were facing resistance from the aviation community. At this point, "[n]oticing that the autopilot was applying large aileron corrections and that the directional gyro indicated a turn to port," the captain disengaged the autopilot, with the disruptive results noted, and "the aircraft made a rapid descent in a spiral manoeuvre." The fact that, contrary to regulations, neither pilot was strapped in at the time might explain much of this if we had any clarity about what was going on in the cabin at the time.
Later in the report, we learn that "[t]his resulted in an increase in the angle of attack until flying speed was lost." Saying things without wasting sentences is why we invent new words, and in this case I am lost as to why the word isn't "stall." The upshot is that Carreras regained control and pulled out at 2500ft and the plane continued on its merry way to its refuelling stop in Malta, a flight distance of 2000km, at which point the airframe was "found to be severely overstressed."
The airframe dossier says that it was scrapped "circa October 1956."
The relevance of this anecdote is that the Tudor was originally ordered as an interim long range large airliner for the "charters," that is, BOAC and the short-lived British South American Airlines that was for some reason, probably related to possible dollar earnings, created alongside BOAC. The Tudor I, with grossly inadequate seating, was followed by the stretched Tudor II, of which BOAC ordered 79 before returning it to the shop for poor "hot and high" capability, which, for the British aviation historian, will trigger memories of the VC10, or the Ensign, for us antiquarians. The Tudor IIs were on their way to becoming something like the Tudor IVs improvised out of some of the initial Tudor Is for BSAA when BSAA began losing scheduled services for never-explained reasons over the Atlantic: Star Tiger and Star Ariel in January of 1948 and 1949 respectively, with a total of 51 people on board. The plane was withdrawn from service, BSAA closed up shop, and the remaining Tudor Is/IVs sold off for freight or occasionally chartered passenger service.
If at this point you're thinking about tapping the screen where the title says "Comet Inquiry," you're just going to have to wait for the break, because all this talk about air disasters is a great excuse to post
