Lacey gave V – Q – f relation as:
1
\({\rm{V}} = {\left[ {\frac{{{\rm{Q}}{{\rm{f}}^2}}}{{160}}} \right]^{\frac{1}{4}}}\)
2
\({\rm{V}} = {\left[ {\frac{{{\rm{Q}}{{\rm{f}}^2}}}{{140}}} \right]^{\frac{1}{6}}}\)
3
\({\rm{V}} = {\left[ {\frac{{{\rm{f}}{{\rm{Q}}^2}}}{{160}}} \right]^{\frac{1}{4}}}\)
4
\({\rm{V}} = {\left[ {\frac{{{\rm{Qf}}}}{{140}}} \right]^{\frac{1}{6}}}\)