EWR 127-1 PDF
Title: EWR 21AUG95, Version: , Date: Aug, Status: Active, Desc: EWR EASTERN AND WESTERN RANGE (EWR). Tailored EWR , System Safety Program Plan, Noncompliance Requests, and Launch Complex Safety Training and Certification. Find the most up-to-date version of EWR CONT. DIST. at Engineering
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These functions include developmental testing and evaluation, sustaining engineering, and certifying that system designs meet safety requirements. Both MOAs confirm the intent that AFMC assume responsibility for the acquisition, developmental testing, sustainment, and improvement of launch vehicles, spacecraft, and launch range systems.
This section discusses several key issues affecting public safety during launch. When combined with the subsequent probabilities of impacting a populated area and causing casualties, 5 the risks from flying over Africa appear to be well within the standard acceptable for the U. Before systems are turned over to operational commands, AFMC must certify that all systems have been designed to meet operational requirements and check out at the component, subsystem, and system levels.
EWR includes a great deal of detailed information on organizational roles and responsibilities.
Also, to reduce the need to refer to regulations and instructions issued by other government organizations, many of their requirements were quoted, expanded, or paraphrased and inserted into EWR Because of the potential risk to the launch area it is necessary to detect and terminate eqr flight of a vehicle that fails to pitch over and head downrange.
Shifting the operational implementation of EWR from risk avoidance to risk management requires a cultural change. However, the safety philosophy and practices codified in EWR often go beyond what is necessary to meet that standard. Eliminate requirements that cannot be validated.
Page 19 Share Cite. Therefore, the absence of Edr capability beyond the coverage area of uprange assets would not reduce safety for malfunctions that terminate thrust prematurely.
Range safety user manual EWR (Eastern and Western Range ) [PDF] – Все для студента
To account for delays in operator response, uncertainties about vehicle breakup, winds, and other aerodynamic effects, destruct lines are defined inside of the ILLs. Also, close working relationships between operational staff at the ranges and acquisition staff within AFMC must be maintained to ensure that new systems and system modifications are consistent with operational needs and can be efficiently implemented in an operational setting. In the course of its study of the risk criteria used at the WR and ER, the committee reviewed a number of documents.
It may also be feasible to move other gates uprange and further reduce the need for downrange facilities. Converge the modeling and analysis approaches, tools, assumptions, and operational procedures used at the Western and Eastern Ranges. The Western Range implements this policy by constraining the azimuth of orbital launches. Primary Recommendation on Africa Gates.
The May draft of the new MOA does not indicate any changes in the division of responsibilities described above see Figure Risk standards then can be used to derive safety requirements, and old requirements not needed to satisfy risk standards can be eliminated.
Thus, in terms of range safety there is no clear justification for retaining downrange assets at Antigua and Ascension. Page 18 Share Cite. Ensuring that safety analyses are accurate and free of unnecessary conservatism will help minimize the temptation to discount their results. Peterson Air Force Base, Colo.: In addition to supporting system program offices and the ranges, the safety office should be responsible for centralizing and simplifying the development of safety policy, procedures, and systems; maintaining a strong engineering, analysis, modeling, and simulation staff through training and career advancement; and reducing costs for the range operators and users.
Moving the Africa gates to within the reach of uprange flight termination, telemetry, and tracking systems is not likely to increase E c significantly or. Tailoring provides range users with great flexibility, but it also reveals a serious shortcoming in the usability of EWR A key element of current range safety procedures involves defining the thresholds used during launch to determine when a flight should be terminated.
In contrast, personnel from launch vehicle manufacturers and the ranges indicated to the committee that the safety offices at both ranges which are part of AFSPC have assumed essentially full responsibility for analysis and testing of safety systems to certify compliance with requirements in EWR The specification of design, qualification, and acceptance testing processes, as well as lessons learned, should be incorporated in the new documentation and removed from EWR Users would have the option of 1 implementing the approved method of compliance to streamline the review process, or 2 using an alternate means of compliance, for which users would accept the responsibility for getting approval.
Modeling and Analysis Issues. Moving the Africa gates uprange has the potential to reduce the cost of safety-related downrange assets, decrease the complexity of range safety operations, and reduce launch holds and delays. In addition, examples of completed forms and an example of a portion of a Tailored EWR are included.
In addition to the operational workforce, each AFSPC range safety office also has an engineering workforce that establishes flight safety system design and testing requirements and certifies that flight safety systems meet safety requirements at the component, subsystem, and system levels.
The effect of this conservatism is that actual operations are likely to be safer than predicted. While other 12-71 may exist, from the perspective of launch range safety the Air Force should move the Africa gates to within the limits of uprange flight termination and tracking systems; eliminate the use of assets in Antigua and Ascension for range safety support; and conduct a detailed technical assessment to validate the feasibility of moving other gates uprange.
Safety procedures based on risk avoidance should be replaced with procedures consistent with the risk management philosophy specified by EWR Page 15 Share Cite.
Range safety user manual EWR 127-1 (Eastern and Western Range 127-1)
Although quick action erw needed, the committee believes that the Air Force 127-11 carefully review implementation issues such as these before moving forward with the recommended transfer of responsibilities. The RCC analysis uses annualized risks when 1227-1 space launch range safety to safety in other fields.
At that time, the MOA specifies that hardware should be ready for flight except for prelaunch processing. At the ER, the measured winds are compared against predefined worst-case winds to determine if the launch may proceed. The combination of vehicle reliability, short time over land, and high speed make it unlikely that moving the Africa gates to within the coverage of uprange assets i.
Nonetheless, developmental engineering continues to be performed by AFSPC in the area of safety systems for launch vehicles and spacecraft.