code: def bhp2pascal(bhp, cfm, fan_tot_eff):
      
      inh2o = bhp * 6356.0 * fan_tot_eff / cfm
      pascal = inh2o2pascal(inh2o)        
      m3s = cfm2m3s(cfm)
      return pascal, m3s
docs: return inputs for E+ in pascal and m3/s