Abstract:
Early lifting structures and planforms With two straight sides and circular ends and with many lifting points in order to encompass road vehicles economically. Problems of load slinging and structural inflexibility, however, precluded the use of the system for most practical applications. This paper describes tests carried out on a circular-planform model to ascertain the effect on performance of only four load attachment points. After several modifications, a practical design was evolved, for use as a basis for a full scale prototype. Appendix B includes a posSible application for such a device.
