Concept Refinement of a Payload Derived Position Acquisition System for Parachute Recovery Systems PDF Download

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9

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Book Description
The paper covers the continued development of a Payload Derived Position Acquisition System (PDPAS) to overcome current limitations posed on recovering the trajectory data for a generic parachute recovery system (PRS). The PDPAS is an instrumentation set and software algorithm that is to be installed onto PRS in order to estimate PRS state vector parameters in real-time for testing and operational use. The development of the PDPAD has progressed to a point where it is providing quality data and is ready for development into usable instrumentation package. The paper discusses the concept of the PDPAS, the first implementation of the PDPAS, changes made to the PDPAS due to continued development, and the steps needed for the PDPAS to be a validated instrumentation package.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 18

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Book Description
For parachute recovery systems (PRS) there is a requirement, for testing and operational use, to know the entire trajectory of the PRS. For testing, the trajectory is required to understand the opening characteristics and the flight performance of the PRS. For operational use, the trajectory information is utilized in real-time for the guidance and control of precision systems. Currently, there are certain limitations in how these trajectories are generated. The paper advocates the development of a Payload Derived Position Acquisition System (PDPAS) to overcome these problems. The PDPAS is an instrumentation set and software algorithm that is to be installed onto PRS in order to estimate PRS state vector parameters in real-time for testing and operational use. Ideally it needs to be done without continuous use of the Differential Global Positioning System receiver and should produce a six degree-of-freedom solution for the PRS's trajectory from aircraft exit to ground impact. The paper discusses the details of developed algorithms, results of computer simulations and processing of real drop data.

Author: J. C. Blair
Publisher:
ISBN:
Category :
Languages : en
Pages : 264

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Author: Theo W. Knacke
Publisher:
ISBN:
Category : Sports & Recreation
Languages : en
Pages : 524

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Book Description
The purpose of this manual is to provide recovery system engineers in government and industry with tools to evaluate, analyze, select, and design parachute recovery systems. These systems range from simple, one-parachute assemblies to multiple-parachute systems, and may include equipment for impact attenuation, flotation, location, retrieval, and disposition. All system aspects are discussed, including the need for parachute recovery, the selection of the most suitable recovery system concept, concept analysis, parachute performance, force and stress analysis, material selection, parachute assembly and component design, and manufacturing. Experienced recovery system engineers will find this publication useful as a technical reference book; recent college graduates will find it useful as a textbook for learning about parachutes and parachute recovery systems; and technicians with extensive practical experience will find it useful as an engineering textbook that includes a chapter on parachute- related aerodynamics. In this manual, emphasis is placed on aiding government employees in evaluating and supervising the design and application of parachute systems. The parachute recovery system uses aerodynamic drag to decelerate people and equipment moving in air from a higher velocity to a lower velocity and to a safe landing. This lower velocity is known as rate of descent, landing velocity, or impact velocity, and is determined by the following requirements: (1) landing personnel uninjured and ready for action, (2) landing equipment and air vehicles undamaged and ready for use or refurbishment, and (3) impacting ordnance at a preselected angle and velocity.

Author: James D. Outzen
Publisher:
ISBN:
Category : Artificial satellites, American
Languages : en
Pages : 602

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Author: Maurice G. Burnett
Publisher:
ISBN:
Category : Artificial satellites, American
Languages : en
Pages : 386

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The United States developed the Gambit and Hexagon programs to improve the nation's means for peering over the iron curtain that separated western democracies from east European and Asian communist countries. The inability to gain insight into vast "denied areas" required exceptional systems to understand threats posed by US adversaries. Corona was the first imagery satellite system to help see into those areas. Hexagon began as a Central Intelligence Agency (CIA) program with the first concepts proposed in 1964. The CIA's primary goal was to develop an imagery system with Corona-like ability to image wide swaths of the earth, but with resolution equivalent to Gambit. Such a system would afford the United States even greater advantages monitoring the arms race that had developed with the nation's adversaries. The Hexagon mapping camera flew on 12 of the 20 Hexagon missions. It proved to be a remarkably efficient and prodigious producer of imagery for mapping purposes. The mapping camera system was successful by every standard including technical capabilities, reliability, and capacity.

Author: Ingard Clausen
Publisher:
ISBN:
Category : Astronautics, Military
Languages : en
Pages : 260

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Book Description
Overview: Provides a history of the Corona Satellite photo reconnaissance Program. It was a joint Central Intelligence Agency and United States Air Force program in the 1960s. It was then highly classified.

Author: Nasa
Publisher: PDQ Press
ISBN: 9780979828898
Category : History
Languages : en
Pages : 400

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Book Description
NASA commissioned the Columbia Accident Investigation Board (CAIB) to conduct a thorough review of both the technical and the organizational causes of the loss of the Space Shuttle Columbia and her crew on February 1, 2003. The accident investigation that followed determined that a large piece of insulating foam from Columbia's external tank (ET) had come off during ascent and struck the leading edge of the left wing, causing critical damage. The damage was undetected during the mission. The Columbia accident was not survivable. After the Columbia Accident Investigation Board (CAIB) investigation regarding the cause of the accident was completed, further consideration produced the question of whether there were lessons to be learned about how to improve crew survival in the future. This investigation was performed with the belief that a comprehensive, respectful investigation could provide knowledge that can protect future crews in the worldwide community of human space flight. Additionally, in the course of the investigation, several areas of research were identified that could improve our understanding of both nominal space flight and future spacecraft accidents. This report is the first comprehensive, publicly available accident investigation report addressing crew survival for a human spacecraft mishap, and it provides key information for future crew survival investigations. The results of this investigation are intended to add meaning to the sacrifice of the crew's lives by making space flight safer for all future generations.

Author: Robert D. Legler
Publisher: www.Militarybookshop.CompanyUK
ISBN: 9781782662235
Category : Science
Languages : en
Pages : 300

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Book Description
Full color publication. This document has been produced and updated over a 21-year period. It is intended to be a handy reference document, basically one page per flight, and care has been exercised to make it as error-free as possible. This document is basically "as flown" data and has been compiled from many sources including flight logs, flight rules, flight anomaly logs, mod flight descent summary, post flight analysis of mps propellants, FDRD, FRD, SODB, and the MER shuttle flight data and inflight anomaly list. Orbit distance traveled is taken from the PAO mission statistics.

Author:
Publisher: DIANE Publishing
ISBN: 1428990488
Category :
Languages : en
Pages : 228

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Book Description
In February 1999, only a few weeks before the U.S. Air Force spearheaded NATO's Allied Force air campaign against Serbia, Col. C.R. Anderegg, USAF (Ret.), visited the commander of the U.S. Air Forces in Europe. Colonel Anderegg had known Gen. John Jumper since they had served together as jet forward air controllers in Southeast Asia nearly thirty years earlier. From the vantage point of 1999, they looked back to the day in February 1970, when they first controlled a laser-guided bomb strike. In this book Anderegg takes us from "glimmers of hope" like that one through other major improvements in the Air Force that came between the Vietnam War and the Gulf War. Always central in Anderegg's account of those changes are the people who made them. This is a very personal book by an officer who participated in the transformation he describes so vividly. Much of his story revolves around the Fighter Weapons School at Nellis Air Force Base (AFB), Nevada, where he served two tours as an instructor pilot specializing in guided munitions.