Abstract. The present study introduces a new correlation predicting critical heat flux (CHF) for a saturated forced convective boiling with an impinging jet. The new correlation is able to predict all the CHF data in V-regime with a good accuracy of • 20% to which the correlations existing until now could not be applicable for 15 < 0I/Q,. < 100 and D/d> 36. The new correlation seems to support a new criterion of CHF mechanism applicable for not only pool boiling but also forced convective boiling, recently proposed by Katto and Haramura.