§ 24. Mr. Walkdenasked the Secretary of State for War whether his attention has been drawn to the efficacy of an antiaircraft rangefinder known as Hank's Predictor; whether this safeguarding device has been tested; whether the results were found to be satisfactory; and whether it has been taken over by the Government?
Mr. CooperAn anti-aircraft rangefinder designed by Mr. Hanks was subjected to exhaustive tests many years ago, but was found to be unsatisfactory. Recently claims as to its efficacy have been renewed, but I am advised that the instrument cannot possibly meet the more complex requirements of present day antiaircraft gunnery. The answer to the last part of the question is in the negative.