GAT convoys


The GAT convoys were a series of Caribbean convoys which ran during the Battle of the Atlantic in World War II.
They take their name from the route: Guantanamo, Cuba to Curaçao, Aruba and Trinidad

Overview

The GAT series was the reverse of TAG series that ran from August 1942 until 18 May 1945. There were 209 GAT convoys, comprising 3,696 individual ship listings. The escort ships for these convoys are not listed in the reference cited. Some of the ships listed in a convoy did not always make the complete trip between Guantanamo and Trinidad though. Some may have traveled as far a Curaçao, others would join and Curaçao and sail on to Trinidad, while others may have left to go to Kingston, Jamaica, San Juan, Puerto Rico or Puerto Plata.
Two convoys were successfully attacked by u-boats during 1942 and 1943, in which three ships were lost.

Convoy List

1942

Only one convoy was attacked, 6 September 1942, by, which resulted in one ship being lost.
ConvoyDeparture
Date
Arrival
Date
No.of Merchant ShipsNotes
GAT 131 August 19427 September 1942360 vessels lost
GAT 23 September 194210 September 1942291 vessel lost; John A. Holloway by, 6 September 1942
GAT 36 September 194213 September 1942360 vessels lost
GAT 410 September 194217 September 1942210 vessels lost
GAT 512 September 194219 September 1942170 vessels lost
GAT 617 September 194224 September 1942220 vessels lost
GAT 720 September 194227 September 1942270 vessels lost
GAT 824 September 194230 September 1942290 vessels lost
GAT 927 September 19423 October 1942230 vessels lost
GAT 101 October 19427 October 1942150 vessels lost
GAT 114 October 19429 October 1942260 vessels lost
GAT 127 October 194213 October 1942150 vessels lost
GAT 12A10 October 1942Not listed00 vessels lost
GAT 1311 October 194217 October 1942140 vessels lost
GAT 1415 October 194220 October 1942260 vessels lost
GAT 1518 October 194223 October 1942140 vessels lost
GAT 1622 October 194228 October 1942270 vessels lost
GAT 1726 October 19421 November 1942150 vessels lost
GAT 17A29 October 19427 November 194250 vessels lost
GAT 1830 October 19425 November 1942310 vessels lost
GAT 193 November 194210 November 1942150 vessels lost
GAT 207 November 194212 November 1942250 vessels lost
GAT 2111 November 194217 November 1942200 vessels lost
GAT 2215 November 194221 November 1942320 vessels lost
GAT 2319 November 194224 November 1942230 vessels lost
GAT 2423 November 194229 November 1942180 vessels lost
GAT 2527 November 19422 December 1942100 vessels lost
GAT 261 December 19427 December 1942210 vessels lost
GAT 276 December 194213 December 1942160 vessels lost
GAT 289 December 194215 December 1942100 vessels lost
GAT 2913 December 194220 December 1942160 vessels lost
GAT 3018 December 194225 December 1942300 vessels lost
GAT 3121 December 194227 December 1942160 vessels lost
GAT 3225 December 19421 January 1943160 vessels lost
GAT 3329 December 19423 January 1943160 vessels lost

1943

Only one convoy was attacked, 13 March 1943, by, which resulted in two ships being lost.
ConvoyDeparture
Date
Arrival
Date
No.of Merchant ShipsNotes
GAT 342 January 19439 January 1943190 vessels lost
GAT 356 January 194312 January 1943120 vessels lost
GAT 3610 January 194316 January 1943200 vessels lost
GAT 3714 January 194320 January 1943220 vessels lost
GAT 3818 January 194324 January 1943290 vessels lost
GAT 3922 January 194327 January 1943190 vessels lost
GAT 4026 January 19431 February 1943360 vessels lost
GAT 4129 January 19434 February 1943130 vessels lost
GAT 424 February 194310 February 1943220 vessels lost
GAT 439 February 194315 February 1943220 vessels lost
GAT 4414 February 194319 February 1943180 vessels lost
GAT 4519 February 194324 February 1943340 vessels lost
GAT 4624 February 19432 March 1943280 vessels lost
GAT 471 March 19438 March 1943260 vessels lost
GAT 486 March 194312 March 1943210 vessels lost
GAT 4911 March 194327 March 1943192 vessels lost; Ceres and Cities Service Missouri by, 13 March 1943
GAT 5016 March 194322 March 1943200 vessels lost
GAT 5122 March 194317 March 1943140 vessels lost
GAT 5226 March 19432 April 1943240 vessels lost
GAT 5330 March 19435 April 1943200 vessels lost
GAT 544 April 19439 April 1943140 vessels lost
GAT 559 April 194315 April 1943340 vessels lost
GAT 5613 April 194319 April 194380 vessels lost
GAT 5719 April 194325 April 1943350 vessels lost
GAT 5824 April 194330 April 1943160 vessels lost
GAT 5928 April 19434 May 1943270 vessels lost
GAT 604 May 194311 May 1943210 vessels lost
GAT 619 May 194316 May 1943270 vessels lost
GAT 6215 May 194321 May 1943240 vessels lost
GAT 6319 May 194326 May 1943220 vessels lost
GAT 6425 May 19431 June 1943240 vessels lost
GAT 6530 May 19435 June 1943380 vessels lost
GAT 663 June 19439 June 1943170 vessels lost
GAT 679 June 194315 June 1943190 vessels lost
GAT 6813 June 194319 June 1943200 vessels lost
GAT 6918 June 194324 June 1943240 vessels lost
GAT 7022 June 194329 June 1943280 vessels lost
GAT 7128 June 19434 July 1943220 vessels lost
GAT 723 July 19439 July 1943220 vessels lost
GAT 737 July 194313 July 1943110 vessels lost
GAT 7413 July 194320 July 1943330 vessels lost
GAT 7518 July 194325 July 1943160 vessels lost
GAT 7623 July 194329 July 1943220 vessels lost
GAT 7728 July 19433 August 1943180 vessels lost
GAT 782 August 19438 August 1943350 vessels lost
GAT 797 August 194313 August 1943190 vessels lost
GAT 8012 August 194318 August 1943170 vessels lost
GAT 8117 August 194323 August 1943220 vessels lost
GAT 8222 August 194328 August 1943330 vessels lost
GAT 8327 August 19433 September 1943150 vessels lost
GAT 842 September 19438 September 1943270 vessels lost
GAT 8516 September 194322 September 1943200 vessels lost
GAT 8612 September 194318 September 1943200 vessels lost
GAT 8715 September 194322 September 1943180 vessels lost
GAT 8823 September 194329 September 1943240 vessels lost
GAT 8925 September 19431 October 1943190 vessels lost
GAT 901 October 19437 October 1943320 vessels lost
GAT 916 October 194312 October 1943170 vessels lost
GAT 9211 October 194316 October 1943310 vessels lost
GAT 9315 October 194320 October 1943170 vessels lost
GAT 9421 October 194327 October 1943200 vessels lost
GAT 9525 October 194330 October 1943200 vessels lost
GAT 961 November 19437 November 1943270 vessels lost
GAT 974 November 194310 November 1943190 vessels lost
GAT 9811 November 194316 November 1943290 vessels lost
GAT 9914 November 194319 November 1943180 vessels lost
GAT 10020 November 194326 November 1943230 vessels lost
GAT 10124 November 194329 November 1943230 vessels lost
GAT 10230 November 19436 December 1943280 vessels lost
GAT 1034 December 194310 December 1943160 vessels lost
GAT 1049 December 194314 December 1943270 vessels lost
GAT 10514 December 194320 December 1943330 vessels lost
GAT 10620 December 194326 December 1943140 vessels lost
GAT 10725 December 194331 December 1943260 vessels lost
GAT 10829 December 19433 January 1944210 vessels lost

1944

ConvoyDeparture
Date
Arrival
Date
No.of Merchant ShipsNotes
GAT 1094 January 194410 January 1944200 vessels lost
GAT 1109 January 194415 January 1944180 vessels lost
GAT 11114 January 194419 January 1944190 vessels lost
GAT 11218 January 194424 January 1944240 vessels lost
GAT 11323 January 194430 January 1944190 vessels lost
GAT 11429 January 19444 February 1944180 vessels lost
GAT 1153 February 19448 February 1944200 vessels lost
GAT 1167 February 194414 February 1944240 vessels lost
GAT 11713 February 194420 February 1944140 vessels lost
GAT 11818 February 194425 February 1944210 vessels lost
GAT 11923 February 194429 February 1944170 vessels lost
GAT 12027 February 19444 March 1944180 vessels lost
GAT 1214 March 194411 March 1944220 vessels lost
GAT 1229 March 194415 March 1944200 vessels lost
GAT 12314 March 194419 March 1944210 vessels lost
GAT 12419 March 194425 March 1944220 vessels lost
GAT 12524 March 194431 March 1944270 vessels lost
GAT 12629 March 19444 April 1944190 vessels lost
GAT 1272 April 19449 April 1944300 vessels lost
GAT 1288 April 194415 April 1944210 vessels lost
GAT 12914 April 194419 April 1944290 vessels lost
GAT 13019 April 194425 April 1944120 vessels lost
GAT 13123 April 194429 April 1944130 vessels lost
GAT 13228 April 19444 May 1944330 vessels lost
GAT 1332 May 19448 May 1944190 vessels lost
GAT 1347 May 194413 May 1944270 vessels lost
GAT 13512 May 194418 May 1944280 vessels lost
GAT 13617 May 194423 May 1944190 vessels lost
GAT 13722 May 194428 May 1944220 vessels lost
GAT 13828 May 19443 June 1944190 vessels lost
GAT 1392 June 19449 June 1944140 vessels lost
GAT 1406 June 194412 June 1944220 vessels lost
GAT 14111 June 194417 June 1944220 vessels lost
GAT 14216 June 194422 June 1944320 vessels lost
GAT 14321 June 194427 June 1944200 vessels lost
GAT 14427 June 19444 July 1944220 vessels lost
GAT 1452 July 19447 July 1944350 vessels lost
GAT 1466 July 194412 July 1944250 vessels lost
GAT 14712 July 194419 July 1944320 vessels lost
GAT 14816 July 194422 July 1944240 vessels lost
GAT 14922 July 194427 July 1944230 vessels lost
GAT 15027 July 19443 August 1944310 vessels lost
GAT 1511 August 19448 August 1944220 vessels lost
GAT 1526 August 194411 August 1944340 vessels lost
GAT 15311 August 194417 August 1944150 vessels lost
GAT 15416 August 194422 August 194490 vessels lost
GAT 15521 August 194427 August 194480 vessels lost
GAT 15625 August 194431 August 1944130 vessels lost
GAT 15731 August 19446 September 194470 vessels lost
GAT 1584 September 19449 September 1944170 vessels lost
GAT 1599 September 194415 September 194470 vessels lost
GAT 16016 September 194421 September 194440 vessels lost
GAT 16121 September 194424 September 194480 vessels lost
GAT 16224 September 194429 September 194440 vessels lost
GAT 16329 September 19444 October 1944220 vessels lost
GAT 1645 October 194411 October 194450 vessels lost
GAT 16510 October 194416 October 194480 vessels lost
GAT 16615 October 194420 October 194440 vessels lost
GAT 16720 October 194425 October 194490 vessels lost
GAT 16825 October 194430 October 194420 vessels lost
GAT 16930 October 19445 November 194430 vessels lost
GAT 1703 November 19449 November 194440 vessels lost
GAT 1719 November 194415 November 194430 vessels lost
GAT 17213 November 194419 November 194470 vessels lost
GAT 17318 November 194423 November 194420 vessels lost
GAT 17424 November 19441 December 194440 vessels lost
GAT 17528 November 19444 December 194440 vessels lost
GAT 176Cancelled
GAT 1779 December 194415 December 194450 vessels lost
GAT 17814 December 1944not recorded20 vessels lost
GAT 17920 December 194428 December 194420 vessels lost
GAT 18024 December 194429 December 194420 vessels lost
GAT 18129 December 19444 January 194540 vessels lost

1945

ConvoyDeparture
Date
Arrival
Date
No.of Merchant ShipsNotes
GAT 1823 January 19459 January 194520 vessels lost
GAT 1838 January 194513 January 194560 vessels lost
GAT 18417 January 194519 January 194540 vessels lost
GAT 18518 January 194523 January 194530 vessels lost
GAT 18623 January 194529 January 194550 vessels lost
GAT 18728 January 19453 February 194530 vessels lost
GAT 1881 February 19458 February 194540 vessels lost
GAT 1897 February 194513 February 194560 vessels lost
GAT 19012 February 194518 February 194530 vessels lost
GAT 19117 February 194523 February 194560 vessels lost
GAT 19223 February 194528 February 194530 vessels lost
GAT 19328 February 19458 March 194530 vessels lost
GAT 1944 March 194510 March 194520 vessels lost
GAT 1959 March 194516 March 194530 vessels lost
GAT 19614 March 194520 March 194550 vessels lost
GAT 19719 March 194525 March 194510 vessels lost
GAT 19824 March 194530 March 194540 vessels lost
GAT 19929 March 19455 April 194550 vessels lost
GAT 2002 April 19458 April 194580 vessels lost
GAT 2018 April 194514 April 194530 vessels lost
GAT 20213 April 194519 April 194550 vessels lost
GAT 20317 April 194523 April 194520 vessels lost
GAT 20423 April 194528 April 194560 vessels lost
GAT 20528 April 19454 May 194540 vessels lost
GAT 2062 May 19459 May 194550 vessels lost
GAT 2078 May 194514 May 194550 vessels lost
GAT 20813 May 194518 May 1945100 vessels lost