The foot-poundal (symbol: ft-pdl) is a unit of energy, introduced in 1879, that is part of the Absolute English system of units, which itself is a coherent subsystem of the foot–pound–second system.[1]
The foot-poundal is equal to 1/32.174049 that of the more commonly used foot-pound force.
- ^ Edward F. Obert, Thermodynamics, McGraw-Hill Book Co., 1948.