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Planar velocity measurements in two rotorcraft flows are presented. The first is that of an isolated rotor in axial flight in a large settling chamber, with measurement parameters and test conditions typical of a full-scale rotor wake. The clean periodicity of this flow allows capture of fundamental vortex dynamics, as well as phase-resolved velocity measurements using an inexpensive white-light-based measurement system. The second flowfield is that of a rotor wake interacting with a fixed wing in a wind tunnel, representing many features of tiltrotor flows. This experiment was used as a test bed to develop and refine a technique to capture all 3 components of phase-resolved velocity over the volume of the interaction region. The velocity field is presented in several chordwise and spanwise sections as a function of rotor azimuth.

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