Boeing 737-100 was also operated by Govt. of Laos till 1999. As for B747-100s also to the list are Saudi Arabian and Iran Air. Maybe Polar Air cargo.
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the radome being shot off because of hail … reminds me of the incident of VC 10 to Bahrain of BOAC i think, somewhere in the gulf it took off and because of hail its radome was totally struken off and the engines were damaged. It was escorted down by a RAF Hunter.