Mike Lithgow's Naval Career can be seen here:
http://www.unithistories.com/officer...fficersL2.html
Whist the accident in which he died is referred to here:
http://www.aviastar.org/air/england/bac-111.php
Which states
inter alia:
"Powerplant of the prototype One-Eleven Series 200, which was intended as the basic production version, consisted of two 4722kg thrust Rolls-Royce Spey Mk 506 turbofans, and so powered the prototype flew for the first time on 20 August 1963. Two months later, on 22 October, this aircraft was lost during the flight development programme, together with a highly experienced crew of seven that included test pilot M. J. Lithgow. Investigation showed the cause to be a deep stall, resulting from the T-tail and rear-mounted engine configuration, and remedial action included the installation of powered elevators, a stick-pusher, and modification of the wing leading edges. These changes were adequate to prevent the aircraft from assuming an inadvertent and dangerous angle of attack, a condition peculiar to this configuration, in which the wing loses lift and the horizontal tail surfaces are unable to restore longitudinal stability. Although responsible for extending considerably the test and development programme of the One-Eleven (the full certificate of airworthiness not being awarded until 5 April 1965), the detailed investigation of the cause and remedy of the deep-stall phenomenon was to prove of considerable value to aircraft designers and manufacturers worldwide."