sorry again, now ChatGPT gives the following input, but
i cannot confirm by checking internet resources, so possibly AI fiction or misunderstanding ?
i'm searching for an incident prior to the WW2 Tizard mission when an aircraft was lost in the Atlantic carrying UK technology secrets
ChatGPT
The incident you're referring to is likely the loss of the British aircraft, a Lockheed Hudson, which occurred in September 1940. This aircraft was en route from the UK to Canada, carrying highly sensitive technology and documents, including details about radar and other classified equipment. Unfortunately, it crashed into the Atlantic Ocean, leading to the loss of both the aircraft and its valuable cargo. This incident underscored the need for secure transportation methods for sensitive information during wartime.
what is the serial number or any other identifier (date etc.) of this loss
ChatGPT
The Lockheed Hudson aircraft lost in the Atlantic in September 1940 was designated as
L7246. It departed from Aldergrove in Northern Ireland on
September 8, 1940, and was headed for Gander in Newfoundland (now part of Canada). Tragically, the aircraft encountered bad weather and crashed into the Atlantic Ocean, resulting in the loss of its valuable cargo of technology secrets intended for delivery to Canada.