Aerodynamic and acoustic characteristics in the nearfield and farfield of a jet, produced at M=0.5 and M=0.8 from chevron nozzles, are experimentally examined and compared with those produced by a plain conical nozzle. Compared to the plain nozzle, the chevron nozzle is found to result in an early start of mixing in the jet thereby significantly reducing the potential core length and increasing the centerline velocity decay rate in the developing region. Chevron is seen to diminish the effect of Mach number on decay rate. The chevron geometry affects the formation of the shear layer and makes it corrugated with the flow radially bulging out through the trough of the chevron. This effect of chevron quickly vanishes and the jet tends to become circular at around x/D=5.The dominant noise source location is found to shift upstream for chevron nozzle. High dB OASPL are seen to evolve along the jet edge only downstream of the potential core end. The noise levels distinctly exhibit effect of chevron by their curtailed magnitude, in particular downstream of the potential core. Cross-correlations obtained at M=0.8 and 0.5 along the jet edge for the chevron nozzle and the plain nozzle show that at higher Mach number the cross-correlation coefficient decreases and this effect is more pronounced for the chevron nozzle in the vicinity of the mixing layer. The chevron lobes are expected to destroy the coherence of the flow structures forming in the mixing layer. Chevron with higher penetration is more effective for reducing the far field noise in the aft angle at higher Mach number