BritishUFOFiles - uap_vol2_ptb_pgs31to45

Document Text (OCR)

U IN TASECRER ) m= PK RESTRICTED METEOROLOGICAL BALLOONS 1 A probable cause of UAP reports which must be considered 1s that of radiosondes and therr lifting balloons 2. Radiosonde Launch Sites There are eight operational upper air stations in the United Kingdom, just part of a world wide network of some 900 The stations in the UK release helium- or hydrogen-filled balloons four times a day at midnight, midday, sxx o'clock in the moming and evening. The transrmtter, (the proper name is a...