Investigation of cambered propeller design for VTOL/STOL airplane. 3/4 front view of Curtis VTOL propeller.

Investigation of cambered propeller design for VTOL/STOL airplane. 3/4 front view of complete configuration, 0 deg.

NACA Photographer John W. Boyd explaining the efficiencies of conical camber

NACA Photographer Conical Cambered wing model in 14ft w.t. with Charles Hall

Investigation of High Lift and Stall Control on 45 deg. 3/4 front view Sweptback Cambered and Twisted Wing, in Ames 40x80 foot Wind Tunnel.

Photo by NACA 45 degree Sweptback wing model drop test Close-up of Body as it Leaves the Plane. Investigation of a Cambered and Twisted 45 degrees Swept-back Wing in the Transonic Range by the Recoverable-body Techniques.

One of the first helicopter tests in the 40 x 80 wind tunnel. John McCloud, pictured, started helicopter work in the 40 x 80. Test 150. Testing the effects of camber on rotor blades.

Charles Hall displaying tunnel model AR-2 which incorporates conical camber as the half-cone twist in the wings (in simulated 2x4' tunnel) Note: printed in 60 year at NASA Ames Research Center by Glenn Bugos NASA SP-2000-4314

In 1949, after graduating from the Cleveland Institute of Art, James “Jim” Modarelli began his career as an artist-designer at the laboratory that would become the NASA Glenn Research Center. When the NACA was approved to be absorbed into the new space agency—NASA, employees were invited to submit designs for the Agency’s logo. Modarelli, who was serving as the Management Services Division Chief at the time, submitted the winning designs. The official NASA seal and the less formal NASA “meatball” insignia (shown here) are among the most recognized emblems in the world. The logos, which include symbols representing the space and aeronautics missions of NASA, became official in 1959. In July 1958, Modarelli participated in a tour at the Ames Unitary Plan Wind Tunnel, where he viewed a model of a radical supersonic airplane designed for flight at Mach 3.0. With a cambered, twisted arrow wing and an upturned nose, the model deeply impressed Modarelli. He later stylized the radical features of the arrow-wing configuration in his evolution of the NASA seal design; the wing would also become an element of the NASA insignia.