Abstract:
To determine Whether the flow conditions in the William Froude National Tank and the new 13 ft. x 9 ft. and 9 ft. × 7 ft. tunnels at the National Physical Laboratory are sufficiently steady to allow the properties of laminar-flow aerofoils to be investigated at high Reynolds numbers: and to obtain information on the behaviour of laminar-flow aerofoil section EQH 1260.