Cgb
Olive oil did specify 2 competent pilots. If you read the BOI (in full) on that one you would wonder how it took so long for such a tragedy to occur. The Sqn Cdr already had one major accident under his belt (ejection from a JP at Acklington in 1965) - although that one was down to the "Fault Free Fire Detection System" which was anything but "Fault Free".