| 11. | The unit attacked the American heavy bomber formations on 26 June near Vienna.
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| 12. | There, MacArthur planned to establish a forward base for heavy bombers.
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| 13. | These aircraft were previously used for training heavy bomber replacement personnel.
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| 14. | Throughout 1943 head-on attacks had proved successful against American heavy bombers.
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| 15. | It was used by transport and heavy bomber and fighter aircraft.
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| 16. | The other Heavy Bomber unit ( the 43rd ) flew B-17s.
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| 17. | The forces are bolstered with 15 B-52 heavy bombers . wf-vars-ggl / vj
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| 18. | The forces are bolstered with 15 B-52 heavy bombers . wf-vars-ggl
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| 19. | Most of the bombing was carried out by B-52 heavy bombers.
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| 20. | Heavy bomber squadrons were seen flying by ever more often beginning in 1944.
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