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U.S. Department of Energy
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ER-20037 LLNL eternal pathfinder wing spar design study report

Technical Report ·
DOI:https://doi.org/10.2172/10142966· OSTI ID:10142966

This document outlines the results of a design study performed by EDO-FSD on the LLNL Eternal Pathfinder Wing Spar/Fuel Tank. The main focus of the design study was the weight minimization of the composite wall of the mid span spar section of the aircraft. The torque, shear, moment and pressure loading requirements, as well as LLNL`s preliminary drawings, were used to develop a reduced weight mid-span spar design. The design study also encompassed details such as the pressure bulkheads, wing rod connectors, and attachment flanges.

Research Organization:
Lawrence Livermore National Lab., CA (United States); EDO Corp., Salt Lake City, UT (United States). Fiber Science Div.
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
10142966
Report Number(s):
UCRL-CR--116829; ON: DE94010064
Country of Publication:
United States
Language:
English

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