Helicopter Ground Mobility System (HGMS) Concept Formulation and Selection.
Abstract
The first task resulted in the definition of some 30 ground mobility system concepts, including wheeled and tracked, frame-type transporters, auxiliary wheel systems, all-wheel-drive prime movers, and two-element, articulated mover systems designed for load transfer from the helicopter. In Task II, the contractor developed evaluation criteria and conducted a preliminary analysis of the suitability of the various concepts for the mission of providing local ground mobility for the AAH and UTTAS helicopters in unimproved terrain. The third task involved the preparation of prototype design layouts of the selected concept, a four-wheeled, two-element, articulated prime mover, with provisions for offloading the tail wheel of the helicopter for weight transfer, and controls for a walking operator. With tractive effort provided by this, the flotation required for the helicopter is achieved by temporarily attaching tracks on the main landing gear of the helicopter. Additionally, under Task III, the contractor prepared the system specification for the HGMS. The program effort was concluded with Task IV, which involved the development of a concept design and preliminary layout drawings for the adapter unit enabling use of the HGMS with skid-equipped helicopters.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1977
- Accession Number
- ADA047507
Entities
People
- J. P. Forsyth
- R. W. Forsyth