NEW CONSTRUCTIONAL TECHNIQUES FOR RADAR EQUIPMENT [Main Title]
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- Title: NEW CONSTRUCTIONAL TECHNIQUES FOR RADAR EQUIPMENT [Main Title]
- Film Number: TRE 157
- Other titles: COLLECTION OF RADAR FILMS FROM TELECOMMUNICATIONS RESEARCH ESTABLISHMENT, MALVERN [Allocated Series Title]
- Summary: A partially edited report by the Telecommunications Research establishment (TRE) on the T2061 airborne VHF transmitter/receiver (radar) equipment, which also appears to illustrate some of the operational differences when compared to previous models and equipment.
- Description: - 'TRE report T 2061, 3rd Jan. 1947' - 'New Constructional Techniques for Radar Equipment' - 'There seems no doubt that for a given standard of performance reliability is the essential factor in operational equipments' - 'Faults' - 'Faults caused by bad electrical design, [and indicator showing] frequency of occurrence' - 'Faults caused by poor control design, [and indicator showing] frequency of occurrence' - 'Faults caused by poor wiring design, [and indicator showing] frequency of occurrence' - 'Faults caused by vibration, [and indicator showing] frequency of occurrence' - 'Faults caused by bad accessibility, [and indicator showing] frequency of occurrence' - 'Faults caused by inadequate instructional books, [and indicator showing] frequency of occurrence' - 'Faults caused by mounting of components, [and indicator showing] frequency of occurrence' - 'Faults caused by use in excess of ratings, [and indicator showing] frequency of occurrence' - 'Faults caused by extremes of line voltage, [and indicator showing] frequency of occurrence' - 'Faults caused by non-type approved parts, [and indicator showing] frequency of occurrence' - 'Faults caused by inadequate shielding, [and indicator showing] frequency of occurrence' - 'Failure rate of components in radar equipment at RRE Malvern 1944 = 3.6%' - '1945 = 2.9%' - '1946 = 3.6%' - '1947 = 4.5%' - '1948 = 2.1%' - '1949 = 2.4%' - '1950 = 2.1%' - '1951 = 1.0%' - '1952 = 2.3%' - '1954= 1.5%' - '1955 = 1.2%' - '1956 = 0.9%' - '1957 = 1.9%' - '1958 = 1.0%' - 'Failure rate of components in laboratory equipments at AERE Harwell' - '1949 = 1.2%'- '1951 = 0.59%' - '1952 = 0.72%' - '1953 = 0.67%' - '1954 = 0.65%' - '1955 = 0.58%' - '1956 = 0.96%' - '1957 = 1.05%' - 'Environment' - 'Effect of environmental conditions on fault rates. Under service conditions (shock, vibration, humidity, temperature extremes etc) 2.0% per 1,000 hours' - ' Effect of environmental conditions on fault rates. Under laboratory conditions (average temperature and humidities in UK and normal handling 0.5% per 1,000 hours' - 'Effect of environmental conditions on fault rates. Under controlled (eg. computer) conditions (temperature stabilised air conditioned installations). 0.06% per 1,000 hours' - 'Cooling' - 'Ten factors in designing for reliability' - '1: avoid unnecessarily complicated circuits' - '2: design with the operator in mind' - '3: use carefully selected and evaluated components' - '4: de-rate valves and components thermally and electrically' - '5: use new design techniques - eg magnetic amplifiers to replace valve amplifiers etc - '6: use effective constructional techniques - eg. sealing - to protect components' - '7: temperature-control equipment where ever possible' - '8: eliminate possible faults by adequate pre-service environmental testing' - '9: advise 100% acceptance testing of components' - '10: use effective storage and transit packing techniques' - 'Microminiaturisation - 'Packing density and estimated reliability of electronic equipments'
- Alternative Title: COLLECTION OF RADAR FILMS FROM TELECOMMUNICATIONS RESEARCH ESTABLISHMENT, MALVERN [Allocated Series Title]
- Colour: Colour
- Digitised:
- Object_Number: TRE 157
- Sound: Silent
- Access Conditions: IWM Attribution: © IWM
- Featured Period:
- Production Date: 1947-01
- Production Country: GB
- Production Details: Telecommunications Research Establishment (Production company)
- Personalities, Units and Organisations:
- Keywords:
- Physical Characteristics: Colour format: Colour Sound format: Silent Soundtrack language: None Title language: English Subtitle language: None
- Technical Details: Format: 16mm Number of items/reels/tapes: 1 Footage: 400 ft; Running time: 11 mins
- HD Media:
- Link to IWM Collections page:
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