Back Tank Frot-Laffly Czech Frot-Laffly landship Italian フロー・ラフリー装甲ローラー Japanese Char Frot-Turmel-Laffly Slovak
| Frot-Laffly roller | |
|---|---|
  Top: Frot-Laffly roller, tested on 28 March 1915 in France. Bottom: "Rouleau cuirassé Paul Frot" in L'Illustration. | |
| Type | Armoured fighting vehicle |
| Place of origin | French Third Republic |
| Service history | |
| In service | March 1915 (experimental) |
| Production history | |
| Designer | Paul Frot |
| Designed | December 1914 |
| Manufacturer | Laffly |
| Produced | Early 1915 |
| No. built | 1 |
| Specifications | |
| Mass | 10 tonnes |
| Length | 7.00 m |
| Width | 2.00 m |
| Height | 2.30 m |
| Crew | 9 |
| Armor | 7 mm |
Main armament | 4 machine guns |
| Engine | gasoline internal combustion engine 20 hp |
| Fuel capacity | 30 liters |
Operational range | one day operation |
| Maximum speed | 3–5 km/h |
The Frot-Laffly armoured roller, also Frot-Turmel-Laffly armoured roller (French: Char Frot-Turmel-Laffly, also Rouleau cuirassé Paul Frot), was an early French experimental armoured fighting vehicle designed and built from December 1914 to March 1915.