Sentinel Waggon Works#Road vehicles

Sentinel is the commonly used name for steam-powered trucks from the 1920s, with the name of the manufacturing company was used.

They were manufactured by the companies Sentinel Waggon Works Ltd. , Shrewsbury, England, and Richard Garrett & Sons, Leiston, Suffolk in the UK and on the European continent ( under license from Sentinel ... ) of Škoda in Plzeň.

They were notable for the enormous robustness and low running costs. Due to the great elasticity of the steam engine they were also suitable for heavy duty off-road and on construction sites. The downside was its short range: The fuel had to go 40 km, are the water refilled ( at full power ) already after 25 km. A cold start took 30 minutes.

It was built very many configuration variants. Some were as big in the 1950s in operation. The steam car of Garrett had similar parameters, but the engine was slightly smaller, but turned up to 800 rpm and had a 2- speed gearbox.

Technical data of the most produced model

• Weight ( full fuel tank): about 8000 kg
• Load capacity: 4-6 tons
• Engine: Two cylinder Lying between the axles, bore 170 mm, stroke 230 mm
• Power: 70 hp at 250 rpm and 19 bar steam pressure
• Maximum speed: 25 km / h
• Fuel: coal, coke, briquettes, charcoal, wood; there was also oil variants
• Tank Volume: 300 kg of coal, 800 gallons of water
• Consumption: 4-5 kg of coal and 30 gallons of water per km
• Range: 40 km at 15 km / h
• Transmission: 2 link chains on rear wheels
• Brakes: The two pairs of jaws in the rear wheels (one each for foot and hand operated). For parking in the slope a fold-out " anchor" support was available
• Tires: solid rubber, front D = 900/720 mm x 180 mm width, rear 2x D = 1050/850 mm x 180 mm width