Data from Litt-A5, one of a series of SJ locomotive diagrams archived by Anders Lundbing on [], last accessed 10 June 2017 (Snabcon AB advertised its tools for mounting RJ45 connectors on bundled cables.) Works numbers were 742-743 in 1930.
Locobase isn't sure about the relationship between these two locomotives and the OKB A3 engines shown in Locobase 20208 or the A6 in Locobase 20210. They have the same cylinder volume and driver diameters, but even less heating surface area because their tube and flue diameters are slightly smaller than the A3. The diagrams show different railways for the A5 and A6 and the boilers differ slightly as well.
(NB: Locobase's specifications show the evaporative heating surface area using the tubes' outer diameter (i.e., the water side). The SJ's calculation used the narrower, fire-side diameters of 42.5 mm and 118 mm (1.67" and 4.65"), tube and flue respectively, which produced a total EHS of 116.03 sq m (1,249 sq ft).)
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | H/A5 |
| Locobase ID | 20209 |
| Railroad | Kalmar (KJ)/Statens Jarnvagar |
| Country | Sweden |
| Whyte | 4-6-0 |
| Number in Class | 2 |
| Road Numbers | 17, 107/1545-1546 |
| Gauge | Std |
| Number Built | |
| Builder | Motala |
| Year | 1930 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.45 / 4.10 |
| Engine Wheelbase (ft / m) | 28.13 / 8.57 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.48 |
| Overall Wheelbase (engine & tender) (ft / m) | 46.56 / 14.19 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 28,660 / 13,000 |
| Weight on Drivers (lbs / kg) | 85,980 / 39,000 |
| Engine Weight (lbs / kg) | 135,364 / 61,400 |
| Tender Loaded Weight (lbs / kg) | 87,082 / 39,500 |
| Total Engine and Tender Weight (lbs / kg) | 222,446 / 100,900 |
| Tender Water Capacity (gals / ML) | 4752 / 18 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.10 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 48 / 24 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 67.70 / 1720 |
| Boiler Pressure (psi / kPa) | 171.10 / 1180 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20.47" x 24.02" / 520x610 |
| Tractive Effort (lbs / kg) | 21,622 / 9807.59 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.98 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 126 - 1.89" / 48 |
| Flues (number - dia) (in / mm) | 21 - 5" / 127 |
| Flue/Tube length (ft / m) | 13.78 / 4.20 |
| Firebox Area (sq ft / m2) | 127.02 / 11.80 |
| Grate Area (sq ft / m2) | 26.91 / 2.50 |
| Evaporative Heating Surface (sq ft / m2) | 1365 / 126.80 |
| Superheating Surface (sq ft / m2) | 392 / 36.40 |
| Combined Heating Surface (sq ft / m2) | 1757 / 163.20 |
| Evaporative Heating Surface/Cylinder Volume | 149.19 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4604 |
| Same as above plus superheater percentage | 5617 |
| Same as above but substitute firebox area for grate area | 26,514 |
| Power L1 | 11,665 |
| Power MT | 897.31 |