Poncelet

{{short description|Obsolete unit of power}}

{{other uses}}

{{Infobox unit

| bgcolor =

| name = poncelet

| image =

| caption =

| standard = Non-SI metric unit

| quantity = Power

| symbol = p

| symbol2 =

| symbol3 =

| namedafter = Jean-Victor Poncelet

| extralabel = Definition

| extradata = 1 p = 100 kgf⋅m/s

| units1 = SI units

| inunits1 = 980.665 W

}}

The poncelet (symbol p) is an obsolete unit of power, once used in France and replaced by {{lang|fr|cheval-vapeur}} (ch, metric horsepower). The unit was named after Jean-Victor Poncelet.François Cardarelli, Encyclopaedia of Scientific Units, Weights and Measures: Their Si Equivalences and Origins, Springer, 2003, {{ISBN|185233682X}}, page 527

One poncelet is defined as the power required to raise a hundred-kilogram mass (quintal) at a velocity of one metre per second (100 kilogram-force·m/s).

: 1 p = 980.665 W = {{sfrac|4|3}} ch ≈ 1.315 hp (imperial horsepower)