May 1960. Prior to the commeiicemoiit of the experinicnts, modified 

 bomb release racks were installed on tlie aircraft's wings and the bomb- 

 sight as developed by Lieut. (jg) T. F. Bndinger, USCG, during the 

 1959 season, was again placed in use. 



Prior to the commencement of the tests, liaison was established 

 with the Canadian Government through the United States C^onsul 

 General at St. Jolui's, Newfoundland, and the Canadian Naval Com- 

 mander, Newfoundland area. The cooperation and enthusiasm re- 

 ceived for the program was most gratifying. On 17 May a notice to 

 mariners was sent advising that aircraft iceberg bond^ing would take 

 ])lac(' from 19 May to 7 June during daylight liours and good weather 

 only. 



Initial plans called for 10 effective l)ond)ing flights with 2 bombing 

 rims per fhght. Unfortunately, poor weather conditions prevailed be- 

 tween 19-22 Alay and consequently the first bond)ing flight was made 

 on 23 May on a berg located in position 49°40' N., 52°40' W. The 

 iceberg remained in the operating area during the entire period. The 

 last run was on 30 May. During the test period, twenty, l,000-i)ound 

 bond)s were dropped on the single icebei'g. A total of 18 hits were 

 made of which 3 were uiuh'i-water bui'sts and 3 failed to detonate. 



Figure ISa is a pictiu'c of tlie iceberg used for the bombing experi- 

 ments. It was 220 feet high at maximum height above the water and 

 475 feet across its bi-oa(h»st face. Figure 18b shows a direct hit on the 

 inside valley of the berg. As a result of the explosion, a spray of ice 

 fragments rose to over 500 feet. The results caii be seen in figure 19a 

 which was taken 2 minutes aftei- the initial exj)losion. Figure 19b 

 shows the iceberg on the moi'ning of 24 May after the efi'ects of the 

 first and second bond:) drops. It is noted that the lierg has tilted antl 

 revealed a pi'cviously submerged sheh'. The shelf again submerged as 

 showni in hgure 20a aftei- a. hit was made in the center of the cavity. 



FicuRE 18a. — Aspect of iceberg at outset of bombing tests. 



22 



