Wind tunnel force measurements have been carried out on a wing-fan combination; the high solidity fan was embedded in a two-dimensional symmetrical wing, with the fan axis normal to the wing chord-plane. Results are discussed and compared with a simple momentum theory, with a view to their usefulness in VTOL project studies. Over a limited range, fan power and model force measurements provide reasonable correlation with theoretical predictions. An understanding of the flow in the vicinity of the fan is facilitated by surface pressure measurements and water tunnel flow visualization studies.