Data from:
Svein Sando's Railway Site [] (9 June 2004)--(Later link: The Semaphore, accessed for link update 10 July 2022.)--and the Jernbane (Iron Road) site [] (June 2004).
This nonet of high-wheeled passenger engines came in several batches -- in 1891, 1893, 1894, and 1898 -- from several builders -- Dubs (2), Hartmann (3), Nyland (2), and SLM (2). Two or three (69 "og" 71) were converted to 13b simple-expansion engines; see Locobase 6155.
Data from:
Svein Sando's Railway Site [] (9 June 2004)--(Later link: The Semaphore, accessed for link update 10 July 2022.)--and the Jernbane (Iron Road) site [] (June 2004).
When the NSB superheated two of the Class 13 American-type Eight-wheelers, they seem to have used the same boiler as the Class 11d 2-6-0 upgrade. The tender also grew slightly. Even with the relatively tall drivers, the boilers seem overmatched.
As with so many Norwegian locomotives, however, their light-footedness ensured a long life and the two 13bs were retired only in 1954. One or more Class 16a were converted to the same specifications as the 13bs.
Data from:
Svein Sando's Railway Site [] (9 June 2004)--(Later link: The Semaphore, accessed for link update 10 July 2022.)--and the Jernbane (Iron Road) site [] (June 2004).
Among the first Norwegian classes to enter series production, these American-type Eight-wheelers were produced by Nydqvist & Holm, AB and Beyer, Peacock. Beyer, Peacock delivered the first 12 in batches of 10 (1877 - works# 1665-1674) and 2 (1879 - works# 1868-1869). N & H delivered theirs in 1880-1882.
The last two to be retired were 115 & 116, both of which were withdrawn on 19 Sept 1953.
Data from:
Svein Sando's Railway Site [] (9 June 2004)--(Later link: The Semaphore, accessed for link update 10 July 2022.)--and the Jernbane (Iron Road) site http://jernbane.net (June 2004). See also Sachsische Maschinenfabrik Richard Hartmann: alle Lokomotiven 1910, a catalogue previewed in Google Books (last accessed 11 Dec 2010). See also Frank Stamford's 27 December 2010 entry "No.7 - 3 ft 6 in gauge 4-4-0 locomotive at Hamar" at [], last accessed 2 September 2019. Dubs produced the first four in 1893-1895, Hartmann followed with three more in 1895-1900, and two from the Thunes workshops is in Kristiania (renamed Oslo in 1925).
Stamford's description and photos include some quite evocative images that highlight the wood tones of the all-weather cab. The #7 is commemorated as the first locomotive to be built at the in-country workshop. It was rated at a maximum speed of 50 kph (31 mph).
| Principal Dimensions by Steve Llanso of Middle Run Media | ||||
|---|---|---|---|---|
| Class | Class 13a | Class 13b/16b/16c | Class 9 | Type XIII |
| Locobase ID | 6154 | 6155 | 6142 | 11872 |
| Railroad | NSB | NSB | NSB | NSB |
| Country | Norway | Norway | Norway | Norway |
| Whyte | 4-4-0 | 4-4-0 | 4-4-0 | 4-4-0 |
| Number in Class | 9 | 2 | 24 | 2 |
| Road Numbers | 68-74, 102-103 | 69, 71/ | 29-31,4 1-48, 53-63, 115-117 | |
| Gauge | Std | Std | Std | 3'6" |
| Number Built | 9 | 24 | ||
| Builder | several | several | several | |
| Year | 1891 | 1877 | 1893 | |
| Valve Gear | Stephenson | Stephenson | Stephenson | Walschaert |
| Locomotive Length and Weight | ||||
| Driver Wheelbase (ft / m) | 6.23 / 1.90 | |||
| Engine Wheelbase (ft / m) | 12.75 / 3.89 | |||
| Ratio of driving wheelbase to overall engine wheelbase | 0.49 | |||
| Overall Wheelbase (engine & tender) (ft / m) | 37.11 / 11.31 | 37.11 / 11.31 | 34.25 / 10.44 | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 15,212 / 6900 | |||
| Weight on Drivers (lbs / kg) | 47,399 / 21,500 | 48,061 / 21,800 | 43,431 / 19,700 | 31,482 / 14,280 |
| Engine Weight (lbs / kg) | 81,350 / 36,900 | 83,335 / 37,800 | 69,005 | 71,871 / 32,600 |
| Tender Loaded Weight (lbs / kg) | 46,077 / 20,900 | 48,061 / 21,800 | 37,258 | 48,061 / 21,800 |
| Total Engine and Tender Weight (lbs / kg) | 127,427 / 57,800 | 131,396 / 59,600 | 106,263 | 119,932 / 54,400 |
| Tender Water Capacity (gals / ML) | 1848 / 5.30 | 2033 / 5.30 | 1400 / 5.30 | 821 / 3.11 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.80 / 3 | 2.80 / 3 | 2.80 / 3 | 1.10 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 39 / 19.50 | 40 / 20 | 36 / 18 | 26 / 13 |
| Geometry Relating to Tractive Effort | ||||
| Driver Diameter (in / mm) | 68.90 / 1750 | 68.90 / 1750 | 57 / 1448 | 55.70 / 1415 |
| Boiler Pressure (psi / kPa) | 174 / 1200 | 174 / 1200 | 142.10 / 980 | 169.70 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15.75" x 24" / 400x610 (1) | 16.75" x 24" / 425x610 | 15" x 20" / 381x508 | 12.6" x 17.99" / 320x457 (1) |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 23" x 24" / 585x610 (1) | 18.9" x 17.99" / 480x457 (1) | ||
| Tractive Effort (lbs / kg) | 8700 / 3946.26 | 14,454 / 6556.23 | 9536 / 4325.46 | 5121 / 2322.85 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.45 | 3.33 | 4.55 | 6.15 |
| Heating Ability | ||||
| Tubes (number - dia) (in / mm) | ||||
| Flues (number - dia) (in / mm) | ||||
| Flue/Tube length (ft / m) | ||||
| Firebox Area (sq ft / m2) | 48.55 / 4.51 | |||
| Grate Area (sq ft / m2) | 14 / 1.30 | 14 / 1.30 | 14 / 1.30 | 7.97 / 0.74 |
| Evaporative Heating Surface (sq ft / m2) | 868 / 80.70 | 719 / 66.80 | 795 / 73.90 | 458 / 42.55 |
| Superheating Surface (sq ft / m2) | 198 / 18.40 | |||
| Combined Heating Surface (sq ft / m2) | 868 / 80.70 | 917 / 85.20 | 795 / 73.90 | 458 / 42.55 |
| Evaporative Heating Surface/Cylinder Volume | 320.78 | 117.47 | 194.35 | 352.82 |
| Computations Relating to Power Output (More Information) | ||||
| Robert LeMassena's Power Computation | 2436 | 2436 | 1989 | 1353 |
| Same as above plus superheater percentage | 2436 | 2972 | 1989 | 1353 |
| Same as above but substitute firebox area for grate area | 8239 | |||
| Power L1 | 3780 | |||
| Power MT | 529.41 | |||