LNWR Improved Precedent Class 2-4-0 Jumbos
The "Jumbos" of the London & North Western Railway
The LNWR Jumbos were among the most famous British steam engines of the
nineteenth century. They were not only capable of high speeds but
regularly hauled heavy loads in relation to their small size, and so they
well deserved their nickname. They were designed by F.W. Webb, and 166 of
them were built at Crewe Works between 1887 and 1901.
Known officially as the "Improved Precedent" class, they were developed
from John Ramsbottom's Newton Class of 1866-73. One of the most famous
"Jumbos" was No. 790 Hardwicke. During the "Races to the North" in 1895,
it set a record which was to last for almost forty years. Hauling the west
coast train from Crewe to Carlisle, it covered the 141 miles of hilly
road, including the four miles of 1 in 75 Shap Summit, at an average speed
of 67 1/4 mph, and achieved speeds over 90 mph. It is now preserved in the
National Railway Museum, York England. Even more famous in its day was No.
955 Charles Dickens. This engine worked the 8:30AM express from Manchester
to London Euston and the 4PM return for twenty years and so covered more
than 2 million miles, a record that has never been broken by any other
British steam engine.
Aster has chosen to model these two famous engines as they were in the
late nineteenth century, in the famous blackberry black livery of the LNWR.
They are are a fitting companion to the model of the famous East Coast
engines, the Stirling Single, produced in 1996. After the grouping of
1923, when the LNWR became part of the LMS, four "Jumbos" were painted in
LMS crimson red. Aster has chosen to model LMS No. 5036 Novelty in red
livery and No. 25001 Snowdon, which was the last surviving "Jumbo" in
plain black livery, as it was when scrapped in 1934.
- Scale/Gauge: 1/32, No. 1 Gauge (45 mm)
- Total Weight: 2.6 kg
- Length Over Buffers: 457 mm
- Width: 74 mm
- Height: 125 mm
- Wheel Arrangement: 2-4-0
- Driving Wheels: 63 mm diameter
- Minimum Radius: 1 meter diameter
- Engine Cylinders: 2 Cylinders Bore 10mm x Stroke 20 mm
- Valve Gear: Slip eccentric
- Boiler Type: Type "C" with 5 fire tubes
- Water Capacity: 80cc at 70% full
- Pressure: 3-4 kg/cm2 at normal working pressure
- Safety valve, regulator valve, blower valve, check valve, pressure
gauge, tender pump, axle pump.
- Lubricator: Roscoe displacement type
- Fuel: Methylated alcohol
- Burner: 2 wick
- Fuel Capicity: 65 cc