UCI CBEMS 175 - CBEMS175 Project 2017 (1) (13 pages)

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CBEMS175 Project 2017 (1)



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CBEMS175 Project 2017 (1)

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Pages:
13
School:
University of California, Irvine
Course:
Cbems 175 - Desgn Failure Invst

Unformatted text preview:

CBEMS 175 DESIGN FAILURE INVESTIGATION SPRING QUARTER 2017 Prof J C Earthman FINAL PROJECT Expert Witness Report Deadline May 17 Contentions Deadline May 22 Court dates May 24 31 June 5 and 7 We will prepare and conduct a mock trail for an imaginary civil suit concerning liability for damages sustained as a result of a failure All students taking the course must participate as a member of one of the groups plaintiff or defendants involved in the trail The Case This concerns the crash of an experimental hypersonic stealth aircraft called the Multiple Use Stealth Tactical Hypersonic Aerospace Vehicle or more familiarly known in aircraft industry circles as MUSTHAV The first prototype crashed while attempting to land at the conclusion of its first test flight killing the civilian test pilot Mr Les S Moore An investigation by a team from the Airforce Investigative Corps AIC traced the primary cause of the crash to fracture of each of a set of five exhaust bleed seal rings in the aircraft s multistage propulsion system These rings keep a set of five exhaust bleed tubes sealed against the exhaust throttle units exhaust passing through these tubes is individually throttled and vectored in order to help steer the aircraft Failure of the seal rings allowed the exhaust bleed tubes to loosen leading to leakage of exhaust a loss of directional control and thereby causing the crash The aircraft and its propulsion system were designed by engineers at Drummin Aerospace Mr Moore s rather lucrative contract as a test pilot with Drummin addressed the possibility that might be injured or killed in an accident while flying experimental aircraft The contract states that if the cause of such an accident was failure that could not have been anticipated by the manufacturer or its subcontractors then Mr Moore was not entitled to receive damages the accident would be deemed an occupational hazard However if negligence on the part of Drummin or its subcontractors was involved then Mr Moore and or his family was entitled to receive damages Negligence was defined to include 1 both obvious errors and also failure to use all of the relevant information that was available to one skilled in the art Mr Moore s family contends that the exhaust bleed seal rings failed due to negligence on the part of all four different companies involved in designing and manufacturing the parts These companies are 1 Drummin Aerospace designed the part and specified the material 2 Marathon Manufacturing machined the parts from barstock 3 Anticlimax Molybdenum supplied the material as barstock 4 Qualcon Associates a quality control lab that tested the material and reported to Drummin on its properties Hence based on the contract and on this assertion of negligence the family contends that it is entitled to receive damages to compensate it for the loss of Mr Moore s life and income Accordingly the family is suing the above four companies for fifty million dollars 50 000 000 The purpose of the



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