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Technical Details: Format: 35mm
Number of items/reels/tapes: 1
Footage: 200 ft ca; Running time: 2 mins
Notes: Summary: Westland Assistant Stress Engineer Philip Tweed in civilian suit is visible climbing ladder. Mr Tweed recalled over screening of film on 6 /2/2003 how blast effect on extended or folded rotor blades was measured against marked poles, movement between set of markings, as demonstrated on film, being acceptable degree of stress.