First Great Westerns class 43 HST number 43004 named First ar gyfer y dyfodol, First for the future stands at platform 10 of London Paddington waiting to bring up the rear of 1B35 to Swansea on 4 May 2016.

According to Realtime Trains the route and timings were; London Paddington 10..........1245........................1245..........................RT Ladbroke Grove 2...................1248 1/2..................1248 1/4....................RT Old Oak Common East..........1249 1/2..................1249 3/4...................RT Old Oak Common West........1250........................1250..........................RT Friars Junction.........................1250........................1250 1/4....................RT Acton West...............................1251 1/2...................1251...........................RT Hanwell Bridge Loop.............1253........................1253..........................RT Southall East Junction...........1253 1/2..................1253 1/4....................RT Southall [STL] 1.........................1253 1/2..................1253 3/4...................RT Southall West Junction..........1254........................1253 3/4...................RT Hayes & Harlington 1..............1254 1/2..................1255..........................RT Heathrow Airport Junction...1254 1/2..................1255 1/4....................RT Slough [SLO] 2.........................1258 1/2..................1258 1/2....................RT Maidenhead [MAI] 1................1301 1/2...................1301 1/2.....................RT Twyford [TWY] 1.......................1304 1/2..................1304..........................RT Kennet Bridge Junction........1308........................1306 1/2.....................1E Reading [RDG] 9......................1310/1312................1308/1310.................2E Reading High Level Jn..........1313 1/2...................1311............................2E Goring & Streatley 1................1318..........................1317............................1E Moreton Cutting DM..............1322........................1320 1/4.....................1E Didcot East Junction..............1323.........................1320 3/4...................2E Didcot Parkway [DID] 1..........1323.........................1321 1/4......................1E Foxhall Junction[XJF] DM.....1323 1/2..................1321 1/2......................1E Milton Junction........................1324 1/2..................1321 3/4....................2E Steventon..................................1325........................1322 1/2....................2E Wantage Road.........................1327 1/2..................1324 1/2....................2E Challow......................................1329 1/2..................1326..........................3E Uffington (Oxfordshire)...........1330 1/2..................1327..........................3E Swindon [SWI] 4......................1337 1/2/1339 1/2..1339/1341..................1L Wootton Bassett Junction....1346.........................1346..........................RT Hullavington.............................1352 1/2..................1352..........................RT Badmington..............................1356........................1356 1/4....................RT Chipping Sodbury...................1359........................1357 1/4.....................1E Westerleigh Junction.............1400 1/2..................1400 1/4....................RT Bristol Parkway [BPW] 2........1406/1409..............1403 1/4/1410............1L Patchway [PWY] 2...................1411...........................1412 1/4......................1L Pilning [PIL] 2............................1414..........................1415............................1L Severn Tunnel East................1415..........................1415 3/4....................RT Severn Tunnel West...............1418 1/2...................1419 1/4.....................RT Severn Tunnel Jn 3................1419 1/2...................1420 3/4....................1L Llanwern West Junction........1425........................1426...........................1L Maindee West Junction........1428........................1428 1/4....................RT Newport [NWP] 2....................1430/1432..............1429 3/4/1431 3/4...RT Ebbw Junction.........................1435.........................1434 1/2....................RT Marshfield.................................1439 1/2..................1437...........................2E Cardiff Central [CDF] 3...........1447/1450..............1449 1/4/1451 1/2.....1L Pontyclun [PYC].......................1501.........................1503 1/4....................2L Bridgend [BGN] 1.....................1509/1510 1/2........1511/1512 1/2............2L Stormy........................................1515.........................1517 1/4.....................2L Margam Moors Junction.......1517 1/2...................1519 1/4......................1L Port Talbot Parkway 1............1522/1523 1/2........1522 3/4/1524 1/2...1L Briton Ferry [BNF]...................1527 1/2..................1527 3/4...................RT Neath [NTH]..............................1529 1/2/1531.........1531 3/4/1533 3/4...2L Swansea Loop East................1541..........................1542 1/2.....................1L