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Brake horsepower

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Formula for [BHP] = {[Q] * [TDH] * [S.G.]} / {3960 * [Eff]} Formula for [BHP] = {[Q] * [TDH] * [S.G.]} / {3960 * [Eff]}

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Input 4 of 5 variables to solve for the unknown.Help
SymbolVariableInputUnits
BHPBrake Horsepower
QFlow
TDHTotal Dynamic Head
S.G.Specific Gravity
EFFEfficiency