Data Collection 



and 



Dissemination 



Ice Reconnaisance Number 



Detachment No. of of Hours 



Deployments Flights Flown 



Pre-season ^^ ^5.2 



In-season ^^ 543.1 



Post-season ^ 10.7 



Total 108 629.0 



Note: In-season ICERECDET 

 flights include transit and logis- 

 tics flights to and from Gander 

 during the Ice patrol season. 



There were 78 sorties dedica- 

 ted solely to ice reconnaisance 

 with a total of 476.1 flight hours. 

 They are summarized as follows: 



Number 

 f^onth of Sorties Fli ght Hours 



Table 2. 



Aircraft Deployments from 



1 October 1983 to 



30 September 1984 



During the 1 984 Ice Patrol year 

 (from 1 October through 30 

 September 1984), 108 aircraft 

 sorties were flown in support of 

 the International Ice Patrol. 

 These included pre-season 

 flights, ice observation and 

 logistics flights during the 

 season, and post-season flights. 

 Pre-season flights determined 

 iceberg concentrations north of 

 48°N, necessary to estimate the 

 time when icebergs would 

 threaten the North Atlantic 

 shipping lanes in the vicinity of 

 the Grand Banks of 

 Newfoundland. During the active 

 season, ice observation flights 

 tocated the southwestern, 

 southern, and southeastern 

 limits of icebergs. Logistics 

 flights were necessary for 

 unusual aircraft maintenance. 

 Post-season flights were made to 

 retrieve parts and equipment 

 from Gander and to close out all 

 business transactions from the 

 season. 



U.S. Coast Guard aircraft, 

 deployed from Coast Guard Air 

 Station Elizabeth City, North 

 Carolina, conducted all the 

 aircraft missions. SLAR- 

 equipped HC-1 30 aircraft were 

 utilized exclusively for aerial ice 

 reconnaisance, HU-25A aircraft 

 were used on two logistics 

 flights, and the VC-4A aircraft was 

 utilized for post season 

 deployment. Table 2 shows 

 aircraft utilization during the 1984 

 season. 



U.S. Coast Guard 

 Communications Station Boston, 

 Massachusetts, NMF/NIK, was 

 the primary radio station used for 



the dissemination of the daily ice 

 bulletins and facsimile charts after 

 preparation by the Ice Patrol 

 office in Groton. Other 

 transmitting stations for the 

 OOOOZ and 1200Z ice bulletins 

 included Canadian Coast Guard 

 Radio Station St. John'sA/ON, 

 Canadian Forces Radio Station 

 Mill Cove/CFH, and U.S. Navy 

 LCMP Broadcast Stations 

 Norfolk/NAM; Thurso, Scotland; 

 and Keflavik, Iceland. 



Canadian Forces Station Mill 

 Cove/CFH as well as AM Radio 

 Station Bracknell/GFE, United 

 Kingdom are radio facsimile 

 broadcasting stations which used 

 Ice Patrol limits in their 

 broadcasts. Canadian Coast 

 Guard Radio Station St. John's/ 

 VON provided special 

 broadcasts. 



The International Ice Patrol 

 requested that all ships transiting 



