NZR DA class
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| NZR DA class | |
 DA 1410 on an excursion. |
|
| Power type | Diesel-electric |
|---|---|
| Builder | General Motors (Canada), General Motors (US), Clyde Engineering (Australia) |
| UIC classification | A1A-A1A |
| Gauge | 1067 mm |
| Length | 14.1 m (GMD/EMD); 14.6 m (Clyde) |
| Total weight | 81 t (GMD/EMD); 79 t (Clyde) |
| Prime mover | GM 12-567C; V12 |
| Top speed | 100 km/h |
| Power output | 3,780 kW |
| Tractive effort | 1230 kW; 1650 hp |
| Career | New Zealand Railways, Tranz Rail, Toll Rail, Steam Incorporated, Mainline Steam |
| Number in class | 146 |
| Number | Original numbers: 1400-1545 TMS numbers: 11-996 |
| First run | 1955-1967 |
| Last run | 1977-1989 |
| Disposition | 85 rebuilt as DC Class, 6 rebuilt as DAA (defunct), 1 rebuilt as DAR 517 (in service), 0 in service |
The NZR DA class, built between 1955 and 1967, was the most numerous class of locomotive to run on New Zealand's national railway network, with 146 locomotives, five more than the previous largest class, the AB steam locomotive of 1915. They were EMD G12 models, similar to the Queensland Rail 1400 class[1]. Two subclasses of the DA existed in later years: DAA (now extinct) and DAR. A lighter version of the DA, the DB, was designed to run on secondary routes from which the DA was excluded.
Contents |
[edit] Operation
The DA class was built to operate main-line passenger and freight trains, and some services on secondary lines. They had a wheel arrangement of A1A-A1A under the UIC classification system, generated 1425 hp (1060 kW), and ran at up to 100 km/h. Although they were not the first class of main-line diesel locomotives to operate in New Zealand (this was the DF of 1954), they were the first class to really displace the steam motive power, which dominated NZR until the 1950s. They were well suited to hauling freight and passenger trains, and operated the "Scenic Daylight" service between Auckland and Wellington. When they arrived in New Zealand the tunnels south of Paekakariki on the North Island Main Trunk Railway (NIMT) were not large enough for them and they could not operate into Wellington via the NIMT until these tunnels were enlarged.
[edit] Rebuilds and withdrawal
In 1970, six members of the class were converted to shunt the Te Rapa yards and reclassified DAA. Between 1977 and 1983 85 DAs were rebuilt as a new class, the DC, most by Clyde Engineering of Australia and five by NZR at the Hutt Workshops. Of the locomotives not converted, the last was retired in 1989 and six were preserved, while a seventh passed into the ownership of Tasman Pulp and Paper. The Tasman locomotive was bought by Tranz Rail (the successor to NZR) in 1998 and reclassified DAR, as the front hood had been rebuilt to provide better visibility.
[edit] External link
[edit] List of locomotives in class
| Original number (DA class) |
TMS number (DA class) |
In service | Withdrawn | Current status | Notes |
| 1400 | 11 | September 1955 | November 1983 | Preserved, on display at MOTAT | Was DAA 1400 |
| 1401 | 28 | July 1988 | Preserved | Was DAA 1401 | |
| 1402 | 34 | September 1955 | February 1988 | Scrapped | Was DAA 1402 |
| 1403 | 40 | February 1988 | Scrapped | Was DAA 1403 | |
| 1404 | 57 | February 1988 | Scrapped | Was DAA 1404 | |
| 1405 | |||||
| 1406 | 63 | February 1988 | Scrapped | Was DAA 1406 | |
| 1407 | 86 | Scrapped | |||
| 1408 | 92 | Scrapped | |||
| 1409 | 103 | Scrapped | |||
| 1410 | 126 | Preserved, Steam Incorporated | |||
| 1411 | 132 | Scrapped | |||
| 1412 | 149 | Scrapped | |||
| 1413 | 155 | Scrapped | |||
| 1414 | 161 | Scrapped | |||
| 1415 | 178 | Scrapped | |||
| 1416 | 184 | Scrapped | |||
| 1417 | 190 | Scrapped | |||
| 1418 | 201 | Scrapped | |||
| 1419 | 218 | February 1988 | Scrapped | ||
| 1420 | 224 | Scrapped | |||
| 1421 | 230 | Scrapped | |||
| 1422 | 247 | Scrapped | |||
| 1423 | 253 | Scrapped | |||
| 1424 | 276 | Scrapped | |||
| 1425 | 282 | Scrapped | |||
| 1426 | Scrapped | ||||
| 1427 | 299 | Scrapped | |||
| 1428 | 316 | Scrapped | |||
| 1429 | 322 | Preserved | |||
| 1430 | 339 | Scrapped | |||
| 1431 | 345 | Preserved, Steam Incorporated | |||
| 1432 | 351 | Scrapped | |||
| 1433 | 368 | Scrapped | |||
| 1434 | 374 | Scrapped | |||
| 1435 | 380 | Scrapped | |||
| 1436 | 397 | Scrapped | |||
| 1437 | 408 | February 1988 | Scrapped | ||
| 1438 | 414 | Scrapped | |||
| 1439 | 420 | Scrapped | |||
| 1440 | 437 | February 1988 | Scrapped | ||
| 1441 | Rebuilt as DC 4421 | ||||
| 1442 | 443 | Scrapped | |||
| 1443 | 466 | Scrapped | |||
| 1444 | 472 | Scrapped | |||
| 1445 | 489 | Scrapped | |||
| 1446 | 495 | Rebuilt as DC 4513 | |||
| 1447 | 506 | Scrapped | |||
| 1448 | 512 | In Service | Rebuilt as DAR 517 | ||
| 1449 | 529 | Scrapped | |||
| 1450 | 535 | Scrapped | |||
| 1451 | 541 | Scrapped | |||
| 1452 | 558 | Scrapped | |||
| 1453 | 564 | Rebuilt as DC 4916 | |||
| 1454 | 570 | ||||
| 1455 | Rebuilt as DC 4254 | ||||
| 1456 | 587 | Rebuilt as DC 4945 | |||
| 1457 | 593 | Rebuilt as DC 4939 | |||
| 1458 | Rebuilt as DC 4450 | ||||
| 1459 | 604 | Rebuilt as DC 4951 | |||
| 1460 | 610 | Scrapped | |||
| 1461 | 627 | Scrapped | |||
| 1462 | 633 | Scrapped | |||
| 1463 | 656 | Scrapped | |||
| 1464 | 662 | Rebuilt as DC 4565 | |||
| 1465 | 679 | Rebuilt as DC 4686 | |||
| 1466 | 685 | Rebuilt as DC 4640 | |||
| 1467 | 691 | Scrapped | |||
| 1468 | 702 | Scrapped | |||
| 1469 | 719 | Rebuilt as DC 4761 | |||
| 1470 | Rebuilt as DC 4317 | ||||
| 1471 | 725 | Preserved | |||
| 1472 | 731 | Rebuilt as DC 4703 | |||
| 1473 | 748 | Scrapped | |||
| 1474 | 754 | Rebuilt as DC 4634 | |||
| 1475 | 760 | Rebuilt as DC 4847 | |||
| 1476 | 777 | Rebuilt as DC 4784 | |||
| 1477 | 783 | Rebuilt as DC 4657 | |||
| 1478 | Rebuilt as DC 4162 | ||||
| 1479 | 800 | Rebuilt as DC 4922 | |||
| 1480 | 817 | Rebuilt as DC 4692 | |||
| 1481 | 823 | Rebuilt as DC 4818 | |||
| 1482 | 846 | Rebuilt as DC 4790 | |||
| 1483 | Rebuilt as DC 4277 | ||||
| 1484 | 852 | Rebuilt as DC 4801 | |||
| 1485 | 869 | Rebuilt as DC 4853 | |||
| 1486 | 875 | Rebuilt as DC 4824 | |||
| 1487 | 881 | Rebuilt as DC 4778 | |||
| 1488 | 898 | Rebuilt as DC 4663 | |||
| 1489 | 909 | Rebuilt as DC 4588 | |||
| 1490 | Rebuilt as DC 4323 | ||||
| 1491 | 915 | Rebuilt as DC 4628 | |||
| 1492 | 921 | Rebuilt as DC 4876 | |||
| 1493 | Rebuilt as DC 4283 | ||||
| 1494 | 938 | Rebuilt as DC 4726 | |||
| 1495 | 944 | Rebuilt as DC 4749 | |||
| 1496 | 950 | Rebuilt as DC 4755 | |||
| 1497 | Rebuilt as DC 4473 | ||||
| 1498 | 967 | Rebuilt as DC 4611 | |||
| 1499 | 973 | Rebuilt as DC 4732 | |||
| 1500 | Rebuilt as DC 4185 | ||||
| 1501 | Rebuilt as DC 4035 | ||||
| 1502 | Rebuilt as DC 4248 | ||||
| 1503 | Rebuilt as DC 4438 | ||||
| 1504 | Rebuilt as DC 4058 | ||||
| 1505 | Rebuilt as DC 4536 | ||||
| 1506 | Rebuilt as DC 4225 | ||||
| 1507 | Rebuilt as DC 4041 | ||||
| 1508 | Rebuilt as DC 4191 | ||||
| 1509 | Rebuilt as DC 4110 | ||||
| 1510 | Rebuilt as DC 4369 | ||||
| 1511 | Rebuilt as DC 4179 | ||||
| 1512 | Rebuilt as DC 4064 | ||||
| 1513 | Rebuilt as DC 4156 | ||||
| 1514 | Rebuilt as DC 4070 | ||||
| 1515 | Rebuilt as DC 4087 | ||||
| 1516 | 996 | Rebuilt as DC 4830 | |||
| 1517 | Scrapped | ||||
| 1518 | Rebuilt as DC 4300 | ||||
| 1519 | Rebuilt as DC 4133 | ||||
| 1520 | Rebuilt as DC 4104 | ||||
| 1521 | Rebuilt as DC 4127 | ||||
| 1522 | Rebuilt as DC 4571 | ||||
| 1523 | Rebuilt as DC 4093 | ||||
| 1524 | Rebuilt as DC 4605 | ||||
| 1525 | Rebuilt as DC 4006 | ||||
| 1526 | Rebuilt as DC 4444 | ||||
| 1527 | Rebuilt as DC 4219 | ||||
| 1528 | Rebuilt as DC 4352 | ||||
| 1529 | November 1967 | Rebuilt as DC 4231 | |||
| 1530 | Rebuilt as DC 4415 | ||||
| 1531 | Rebuilt as DC 4260 | ||||
| 1532 | Rebuilt as DC 4012 | ||||
| 1533 | November 1967 | Rebuilt as DC 4029 | |||
| 1534 | Rebuilt as DC 4496 | ||||
| 1535 | Rebuilt as DC 4202 | ||||
| 1536 | Rebuilt as DC 4346 | ||||
| 1537 | November 1967 | Rebuilt as DC 4542 | |||
| 1538 | Rebuilt as DC 4594 | ||||
| 1539 | November 1967 | Rebuilt as DC 4559 | |||
| 1540 | November 1967 | Rebuilt as DC 4375 | |||
| 1541 | November 1967 | Rebuilt as DC 4467 | |||
| 1542 | November 1967 | Rebuilt as DC 4398 | |||
| 1543 | November 1967 | Rebuilt as DC 4409 | |||
| 1544 | November 1967 | Rebuilt as DC 4381 | |||
| 1545 | November 1967 | Rebuilt as DC 4507 |
