Dodig-2016-107 for Official Use Only

Total Page:16

File Type:pdf, Size:1020Kb

Dodig-2016-107 for Official Use Only Report No. DODIG-2016-107 FOR OFFICIAL USE ONLY U.S. Department of Defense InspectorJULY 5, 2016 General Advanced Arresting Gear Program Exceeded Cost and Schedule Baselines INTEGRITY EFFICIENCY ACCOUNTABILITY EXCELLENCE The document contains information that may be exempt from mandatory disclosure under the Freedom of Information Act. FOR OFFICIAL USE ONLY FOR OFFICIAL USE ONLY INTEGRITY EFFICIENCY ACCOUNTABILITY EXCELLENCE Mission Our mission is to provide independent, relevant, and timely oversight of the Department of Defense that supports the warfighter; promotes accountability, integrity, and efficiency; advises the Secretary of Defense and Congress; and informs the public. Vision Our vision is to be a model oversight organization in the Federal Government by leading change, speaking truth, and promoting excellence—a diverse organization, working together as one professional team, recognized as leaders in our field. Fraud, Waste, & Abuse HOTLINE Department of Defense dodig.mil/hotline|800.424.9098 For more information about whistleblower protection, please see the inside back cover. FOR OFFICIAL USE ONLY FOR OFFICIAL USE ONLY Advanced Arresting Gear Program Exceeded Cost Resultsand Schedule Baselinesin Brief July 5, 2016 Finding (cont’d) Objective As a result, major AAG system components required costly redesign, which delayed developmental testing and will Our objective was to determine whether further postpone delivery of the full AAG system capability the Navy was effectively managing the to the CVN-78 aircraft carrier. AAG hardware and software acquisition requirements and testing for the component failures and test site preparation led to the AAG Advanced Arresting Gear (AAG) program. program exceeding the Acquisition Category I threshold The arresting gear is the system responsible for Research, Development, Test, and Evaluation (RDT&E) for stopping aircraft while landing on the costs. As of October 2015, RDT&E costs for the AAG program flight deck of a carrier. total $743.5 million, which was $571.5 million above the Finding planned costs in the 2005 Acquisition Program Baseline. Developmental testing originally scheduled to end in FY 2009 will continue through FY 2018, and reliability of the system The Program Manager, Aircraft Launch and is uncertain. Recovery Equipment (PMA-251), did not Recommendations effectively manage the acquisition to meet requirements and execute testing for the AAG program. Ten years after the program We recommend the Assistant Secretary of the Navy for entered the engineering and manufacturing Research, Development, and Acquisition perform cost-benefit development phase, the Navy has not been analyses to determine whether the AAG is an affordable able to prove the capability or safety of solution for Navy aircraft carriers before deciding to go the system to a level that would permit forward with the system on future aircraft carriers. actual testing of the system on an aircraft carrier because of hardware failures We recommend the Program Manager, Aircraft Launch and and software challenges. This occurred Recovery Equipment, update the AAG Test and Evaluation because the Navy pursued a technological Master Plan to revise the planned test strategy, test schedule, solution for its Ford-class carriers that was developmental and operational funding, and add measures not sufficiently mature for the planned to support the program’s reliability growth plan before use, resulting in hardware failures to the Acquisition Category IC Acquisition Program Baseline mechanical and electrical components and is finalized. software modifications to accommodate Management Comments and those failures. Our Response In addition, the program manager did not revise the Test and Evaluation Master Plan to address significant changes to Comments from the Assistant Secretary of the Navy the test strategy and schedule. This for Research, Development, and Acquisition; and the occurred because redesign changes Program Manager, Aircraft Launch and Recovery Equipment, required significant revisions to AAG addressed all the specifics of the recommendations and no key components, and those changes further action is required. Please see the Recommendations took priority over updating the Test Table on the back of this page. and Evaluation Master Plan. Visit us at www.dodig.mil FOR OFFICIAL USE ONLY i DODIG-2016-107 (Project No. D2015-D000AE-0191.000) │ FOR OFFICIAL USE ONLY Recommendations Table Recommendations No Additional Management Requiring Comment Comments Required Assistant Secretary of the Navy for Research, Development, and Acquisition 1 Program Manager, Aircraft Launch and Recovery Equipment 2 FOR OFFICIAL USE ONLY ii │ DODIG-2016-107 (Project No. D2015-D000AE-0191.000) FOR OFFICIAL USE ONLY INSPECTOR GENERAL DEPARTMENT OF DEFENSE 4800 MARK CENTER DRIVE ALEXANDRIA, VIRGINIA 22350-1500 July 5, 2016 MEMORANDUM FOR ASSISTANT SECRETARY OF THE NAVY FOR RESEARCH, DEVELOPMENT, AND ACQUISITIO N NAVAL INSPECTOR GENERAL SUBJECT: Advanced Arresting Gear Program Exceeded Cost and Schedule Baselines (Report No. DODIG-2016-107) We are providing this report for your information and use. We determined that the program manager did not effectively manage the Advanced Arresting Gear Program acquisition to meet requirements and execute testing. The Advanced Arresting Gear Program exceeded cost and schedule baselines because of hardware and software failures and test site preparation. We conducted this audit in accordance with generally accepted government auditing standards. We considered management comments on a draft of this report when preparing the final report. DoD Instruction 7650.03 requires that recommendations be resolved promptly. Comments from the Assistant Secretary of the Navy for Research, Development, and Acquisition and the Program Manager, Aircraft Launch and Recovery Equipment conformed to the requirements of DoD Instruction 7650.03; therefore, we do not require additional comments. We appreciate the courtesies extended to the staff. Please direct questions to me at (703) 604-9077 (DSN 664-9077). CJ~arver~ Assistant Inspector General Acquisition and Sustainment Management FOR OFFICIAL USE ONLY DODIG-2016-lC ~ iii FOR OFFICIAL USE ONLY Contents Introduction Objective ________________________________________________________________________________________1 Background _____________________________________________________________________________________1 FindinReview ofg. Internal Advanced Controls ___________________________________________________________________ Arresting Gear Exceeded Cost 6 and Schedule Baselines ________________________________________________________7 Mechanical and Electrical Components Required Redesign During Testing _____________8 Software Challenges __________________________________________________________________________ 10 Program Cost Challenges ____________________________________________________________________ 11 Developmental Testing May Delay Shipboard Testing ____________________________________ 12 Reliability of the AAG System Is Uncertain _________________________________________________ 15 Conclusion ____________________________________________________________________________________ 16 Management Comments on the Finding ____________________________________________________ 17 AppendixeRecommendations,s Management Comments, and Our Response ________________________ 17 Appendix A. Scope and Methodology ______________________________________________________ 19 Use of Computer-Processed Data _______________________________________________________ 20 Use of Technical Assistance _____________________________________________________________ 20 Prior Coverage ___________________________________________________________________________ 20 ManagementAppendix B. AAG Test Comment Schedule ____________________________________________________________s 21 Assistant Secretary of the Navy for Research, Development, Glossaryand Acquisition Comments ______________________________________________________________ 22 Acronyms __________________________________________________________________________________ and Abbreviations 26 _____________________________________________ 29 FOR OFFICIAL USE ONLY iv │ DODIG-2016-107 FOR OFFICIAL USE ONLY Introduction Introduction Objective Our objective was to determine whether the Navy was effectively managing the acquisition requirements and testing for the Advanced Arresting Gear (AAG) program. See Appendix A for a discussion of our scope and methodology and prior coverage related to the audit objectives. See the Glossary for the definition of Backgroundtechnical terms used in the report. 1 The AAG program is a Major Defense Acquisition Program (Category IC ). During the audit, the program was in the engineering and manufacturing development phase of the acquisition process. The Milestone Decision Authority for the AAG is the Assistant Secretary of the Navy for Research, Development, and Acquisition (ASN [RDA]). The Navy developed the AAG system to replace the existing Mark-7 (MK-7) arresting gear. The purpose of the arresting gear is to stop aircraft after it lands on the aircraft carrier. The Milestone Decision Authority approved the AAG program entry into the engineering and manufacturing2 development phase on February 10, 2005, as an Acquisition Category II program. On June 15, 2015, the Navy notified the Under Secretary of Defense (Acquisition, Technology, and Logistics) that the AAG program had exceeded the Acquisition Category I threshold
Recommended publications
  • Aircraft Carrier Operating Procedures
    This document belongs to “Speed & Angels” and shall not be reproduced. Created by: DCS-Sn@k3Sh!t for educational and training purposes only. Aircraft Carrier Operating Procedures This work is licensed under a Creative Commons Attribution- ShareAlike 4.0 International License. For DCS World 2.5 Revision 01 © Copyright Act R.S.C. 1985 c. C-42. This document belongs to “Speed & Angels” and shall not be reproduced. Foreword: Created by: DCS-Sn@k3Sh!t for educational and training purposes only. The goal of every Naval Officer who is selected for jet pilot training is to become a tactical carrier pilot. Carrier pilots are the best because they must be the best. The carrier environment will not tolerate anything less. Landing and launching aircraft as well as moving equipment and personnel in a relatively small area requires precise coordination for safe operation. Handling aircraft on a flight deck is more complicated than at a field due to the high winds across the deck, small crowded deck, the proximity of the deck edge and the ship's movement. Successful and safe operations in and around the carrier depend on a coordinated team effort in which all team members do their job properly. There is no excuse for not knowing and not using correct procedures around the ship and there are no exceptions to this rule. This manual is written with the intent to achieve the highest possible standard of “Carrier Operations” within DCS World. After studying this manual, you should be able to operate safely and expeditiously on and in proximity of the carrier.
    [Show full text]
  • Mk 7 Aircraft Recovery Equipment
    CHAPTER 3 MK 7 AIRCRAFT RECOVERY EQUIPMENT Present-day aircraft normally require the use of then opened, allowing fluid to be forced from the runways that are 5,000 to 8,000 feet long in order to accumulator back into the engine cylinder, forcing the land ashore. On an aircraft carrier, these same aircraft ram out. As the ram moves out of the cylinder, the are stopped within 350 feet after contacting the deck. crosshead is forced away from the fixed sheave This feat is accomplished through the use of aircraft assembly, pulling the purchase cables back onto the recovery equipment, including an emergency barricade engine until the crosshead is returned to its BATTERY that brings a landing aircraft to a controlled stop by position and the crossdeck pendant is in its normal absorbing and dispelling the energy developed by the position on the flight deck. landing aircraft. This recovery equipment is commonly called arresting gear. PRERECOVERY PREPARATIONS The sole purpose of an aircraft carrier is to provide Prior to recovery of aircraft, all recovery equipment a means of launching a strike against an enemy and landing area must be made ready and all personnel anywhere in the world. After the aircraft complete their properly positioned. The following is a general listing mission, the carrier must provide a means of safely of the events that must be accomplished prior to the recovering them. The Mk 7 arresting gear provides this recovery of aircraft: means. • All operational retractable sheaves raised to the full up position AIRCRAFT RECOVERY • LEARNING OBJECTIVE: Describe aircraft All aft deckedge antennas positioned, as arrestments aboard aircraft carriers.
    [Show full text]
  • Vpa Report 2002-12-05
    UNCLASSIFIED NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION PATUXENT RIVER, MARYLAND TECHNICAL REPORT REPORT NO: NAWCADPAX/TR-2002/71 REVIEW OF THE CARRIER APPROACH CRITERIA FOR CARRIER-BASED AIRCRAFT PHASE I; FINAL REPORT by Thomas Rudowsky Stephen Cook Marshall Hynes Robert Heffley Melvin Luter Thomas Lawrence CAPT Robert Niewoehner Douglas Bollman Page Senn Dr. Wayne Durham Henry Beaufrere Michael Yokell Albert Sonntag Approved for public release; distribution is unlimited. UNCLASSIFIED DEPARTMENT OF THE NAVY NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION PATUXENT RIVER, MARYLAND NAWCADPAX/TR-2002/71 REVIEW OF THE CARRIER APPROACH CRITERIA FOR CARRIER-BASED AIRCRAFT - PHASE I; FINAL REPORT by Thomas Rudowsky Stephen Cook Marshall Hynes Robert Heffley Melvin Luter Thomas Lawrence CAPT Robert Niewoehner Douglas Bollman Page Senn Dr. Wayne Durham Henry Beaufrere Michael Yokell Albert Sonntag NAWCADPAX/TR-2002/71 REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.
    [Show full text]
  • Carrier Deck Launching of Adapted Land-Based Airplanes
    DOI: 10.13009/EUCASS2017-275 7TH EUROPEAN CONFERENCE FOR AERONAUTICS AND SPACE SCIENCES (EUCASS) Carrier deck launching of adapted land-based airplanes HERNANDO, José-Luis and MARTINEZ-VAL, Rodrigo Department of Aircraft and Spacecraft School of Aerospace Engineering Universidad Politécnica de Madrid 28040Madrid, Spain [email protected]; [email protected] Abstract Harrier VTOL is the basic combat airplane for many Navies, but it will soon be retired from service. Three main alternatives appear: to incorporate another, already existing or under development airplane; to design a completely new aircraft; or to modify an existing land-based airplane for carrier suitability. The present paper is part of a study to assess the feasibility of the third option. In former papers the authors have addressed the compatibility of land-based airplanes with aircraft carriers and the details of the carrier approach guidance and recovery; and showed some major modifications required in wing structure and landing gear. The research proposed here studies the airplane performance during the launching manoeuvre, formed by a take-off run on the flat deck followed by a ski-jump. 1. Introduction Along its 100 years of existence naval aviation has progressed astonishingly, but it is still one of the most demanding environments for airplane operations: extremely short, moving runways; flight in rough air generated by the vessel’s superstructure wake and from the sea surface; etc [1-3]. Modern aircraft carriers are classified into three categories: vessels designed to operate only with thrust vectoring airplanes; ships designed for short take-off and arrested recovery (STOBAR); and carriers equipped with catapults and arresting devices (CATOBAR).
    [Show full text]
  • Dynamic Analysis and Security Characteristics of Carrier-Based Aircraft Arresting in Yaw Condition
    applied sciences Article Dynamic Analysis and Security Characteristics of Carrier-Based Aircraft Arresting in Yaw Condition Yiming Peng 1, Pengpeng Xie 2, Xiaohui Wei 1,* and Hong Nie 1,* 1 State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; [email protected] 2 Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; [email protected] * Correspondence: [email protected] (X.W.); [email protected] (H.N.) Received: 22 January 2020; Accepted: 5 February 2020; Published: 13 February 2020 Abstract: In order to research the safety characteristics of carrier-based aircraft in yaw arrest, a complete dynamic model of the arresting system of a certain type of aircraft was developed to understand more about its dynamic properties. Based on the discrete kink-wave model, a simulation of centering arrest was conducted. The simulation results were compared with experimental data from the United States (US) military standards, demonstrating that the basic changing laws are almost the same. On the basis of centering arrest, a simulation of yaw arrest was carried out. The results show that in yaw state, the difference in the lengths of the arresting cables on either side of the hook is smaller in the early stage after the hook hangs on the rope, which leads to little influence on load fluctuation produced by the kink-wave. With the increase in arresting distance, the difference in the lengths of the arresting cables on either side becomes larger, resulting in a situation in which the cable tension on the departure side will gradually become greater than that on the opposite side.
    [Show full text]
  • Research Article Modeling and Simulation of Arresting Gear System with Multibody Dynamic Approach
    Hindawi Publishing Corporation Mathematical Problems in Engineering Volume 2013, Article ID 867012, 12 pages http://dx.doi.org/10.1155/2013/867012 Research Article Modeling and Simulation of Arresting Gear System with Multibody Dynamic Approach Wenhou Shen,1,2 Zhihua Zhao,1 Gexue Ren,1 and Jiapeng Liu1 1 Tsinghua University, Beijing 100084, China 2 Naval Aviation Institute, Huludao 125001, China Correspondence should be addressed to Wenhou Shen; [email protected] Received 17 July 2013; Revised 19 September 2013; Accepted 19 September 2013 Academic Editor: Song Cen Copyright © 2013 Wenhou Shen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The arresting dynamics of the aircraft on the aircraft carrier involves both a transient wave propagation process in rope and a smooth decelerating of aircraft. This brings great challenge on simulating the whole process since the former one needs small time-step to guarantee the stability, while the later needs large time-step to reduce calculation time. To solve this problem, this paper proposes a full-scale multibody dynamics model of arresting gear system making use of variable time-step integration scheme. Especially, a kind of new cable element that is capable of describing the arbitrary large displacement and rotation in three-dimensional space is adopted to mesh the wire cables, and damping force is used to model the effect of hydraulic system. Then, the stress of the wire ropes during the landing process is studied. Results show that propagation, reflection, and superposition of the stress wave between the deck sheaves contribute mainly to the peak value of stress.
    [Show full text]
  • +91-11-23010351 Directorate of Naval Air Staff Integrated Headquarters Ministry of Defence
    Tele : +91-11-23010592 Fax : +91-11-23010351 Directorate of Naval Air Staff Integrated Headquarters Ministry of Defence (Navy) ‘A’ Block Hutments Dalhousie Road New Delhi - 1100011 AO/ 9805/ DBF Jan 17 REQUEST FOR INFORMATION (RFI) FOR PROCUREMENT OF MULTI- ROLE CARRIER BORNE FIGHTER FOR THE INDIAN NAVY 1. The Ministry of Defence, Government of India, intends to procure approximately 57 Multi-Role Carrier Borne Fighters (MRCBF) for aircraft carriers of the Indian Navy (IN). 2. This Request for Information (RFI) consists of two parts as indicated below: - (a) Part I. This part of the RFI incorporates operational characteristics and features that should be met by the aircraft. Few important technical parameters of the proposed aircraft are also mentioned. (b) Part II. This part of the RFI states the methodology of seeking response of the vendors. Submission of incomplete response format will render the vendor liable for rejection. PART – I 3. Intended Use. The MRCBF are intended as day and night capable, all weather multi-role deck based combat aircraft which can be used for Air Defence (AD), Air to Surface Operations, Buddy Refuelling, Reconnaissance, EW missions etc from IN aircraft carriers. 4. Important Parameters. (a) Technical parameters for the MRCBF as per Appendix A. (b) What would be the approximate budgetary estimates for the MRCBF you would be supplying including customs duties, spares, installation, commissioning, training, documentation, Comprehensive Annual Maintenance for the life cycle of the aircraft (post warranty) and 2 depot level repair facility? This information is to be provided mandatorily under separate heads. (c) What level of ToT and deep repair expertise is the company willing to share with India? The vendor should specify Critical Technologies required and comment on its ability to absorb the aircraft manufacturing technology at the levels of sub vendor/ supply chain elements in India through ToT from OEM and its partners.
    [Show full text]
  • India Test Fires Scramjet Demonstrator Aircraft
    Thu, 05 Dec 2019 India test fires scramjet demonstrator aircraft India successfully launched the indigenously-developed Hypersonic Technology Demonstrator Vehicle in its maiden test from a base off the Odisha coast on Wednesday. The HSTDV was successfully test-fired by the Defence Research and Development Organisation from Launch Complex-4 of the Integrated Test Range on Dr Abdul Kalam Island in Bay of Bengal at 11.27 am, DRDO sources said. A defence ministry statement said the DRDO launched the technology demonstrator vehicle to prove a number of critical technologies for futuristic missions. “The missile was successfully launched. Various radars, telemetry stations and electro-optical tracking sensors tracked the vehicle through its course. The data has been collected and will be analysed to validate the critical technologies,” it added. The HSTDV is an unmanned scramjet demonstration aircraft for hypersonic speed flight, it can cruise at a speed of mach 6 and move up to an altitude of 32.5 km (20 miles) in 20 seconds, the sources said. Besides its utility for long-range cruise missiles of the future, the dual-use technology will have multiple civilian applications also. It can be used for launching satellites at low cost too, they added. Describing the maiden trial of the HSTDV as successful, a DRDO scientist said, “The new technology demonstrator vehicle was tested and the observations made by the radars and tracking sensors showed that it was a success.” The trial was carried out in the presence of senior scientists and defence officials, including DRDO Chairman G Satheesh Reddy and ITR Director B K Das.
    [Show full text]
  • Cvn Flight/Hangar Deck Natops Manual This Manual Supersedes Navair 00-80T-120 Dated 1 April 2008
    NAVAIR 00-80T-120 CVN FLIGHT/HANGAR DECK NATOPS MANUAL THIS MANUAL SUPERSEDES NAVAIR 00-80T-120 DATED 1 APRIL 2008 DISTRIBUTION STATEMENT C — Distribution authorized to U.S. Government agencies and their contractors to protect publications required for official use or for administrative or operational purposes only, determined on 15 December 2010. Additional copies of this document can be downloaded from the NATEC website at https://mynatec.navair.navy.mil. DESTRUCTION NOTICE — For unclassified, limited documents, destroy by any method that will prevent disclosure of contents or reconstruction of the document. ISSUED BY AUTHORITY OF THE CHIEF OF NAVAL OPERATIONS AND UNDER THE DIRECTION OF THE COMMANDER, NAVAL AIR SYSTEMS COMMAND. 0800LP1113205 15 DECEMBER 2010 1 (Reverse Blank) NAVAIR 00−80T−120 DEPARTMENT OF THE NAVY NAVAL AIR SYSTEMS COMMAND RADM WILLIAM A. MOFFETT BUILDING 47123 BUSE ROAD, BLDG 2272 PATUXENT RIVER, MARYLAND 20670‐1547 15 December 2010 LETTER OF PROMULGATION 1.The Naval Air Training and Operating Procedures Standardization (NATOPS) Program is a positive approach toward improving combat readiness and achieving a substantial reduction in the aircraft mishap rate. Standardization, based on professional knowledge and experience, provides the basis for development of an efficient and sound operational procedure. The standardization program is not planned to stifle individual initiative, but rather to aid the Commanding Officer in increasing the unit's combat potential without reducing command prestige or responsibility. 2.This manual standardizes ground and flight procedures but does not include tactical doctrine. Compliance with the stipulated manual requirements and procedures is mandatory except as authorized herein. In order to remain effective, NATOPS must be dynamic and stimulate rather than suppress individual thinking.
    [Show full text]
  • GAO-13-396, Ford-Class Carriers
    United States Government Accountability Office Report to Congressional Requesters September 2013 FORD-CLASS CARRIERS Lead Ship Testing and Reliability Shortfalls Will Limit Initial Fleet Capabilities GAO-13-396 September 2013 FORD-CLASS CARRIERS Lead Ship Testing and Reliability Shortfalls Will Limit Initial Fleet Capabilities Highlights of GAO-13-396, a report to congressional requesters Why GAO Did This Study What GAO Found The Navy plans to spend over $43 The Navy faces technical, design, and construction challenges to completing billion to produce three Ford-class Gerald R. Ford (CVN 78) that have led to significant cost increases and reduced aircraft carriers. The lead ship, CVN the likelihood that a fully functional ship will be delivered on time. The Navy has 78, is under construction, and achieved mixed progress to date developing CVN 78’s critical technologies, such preparation work is underway for the as a system intended to more effectively launch aircraft from the ship. In an effort second, CVN 79. These ships will to meet required installation dates aboard CVN 78, the Navy has elected to feature new technologies designed to produce some of these systems prior to demonstrating their maturity—a strategy increase capability and reduce crew that GAO’s previous work has shown introduces risk of late and costly design size. GAO was asked to evaluate the changes and rework, and leaves little margin to incorporate additional weight progress of the Ford class. This report growth in the ship. In addition, progress in constructing CVN 78 has been examines (1) technical, design, and construction challenges to delivering overshadowed by inefficient out-of-sequence work, driven largely by material the lead ship within budget and shortfalls, engineering challenges, and delays developing and installing critical schedule estimates; (2) the Navy’s test technology systems.
    [Show full text]
  • Excellence in FY07 [email protected] Ext
    ExceCOMMANDllence On-duty or off-duty, wear the right protective gear. For more information on lawn mowing go to: www.safetycenter.navy.mil/safetips/f-m/lawnmower.htm The Navy & Marine Corps Aviation Safety Magazine July-August 2008, Volume 53 No. 4 RADM Arthur Johnson Commander, Naval Safety Center Col. Mark W. Vanous, USMC Deputy Commander John Mahoney Head, Communications and Marketing CONTENTS Naval Safety Center (757) 444-3520 (DSN 564) Dial the following extensions any time during the greeting Publications Fax (757) 444-6791 Approach Staff Jack Stewart Editor and Distribution [email protected] Ext. 7257 Allan Amen Graphics, Design & Layout [email protected] Ext. 7248 Capt. Ed Langford Aviation Safety Programs ed.langford.navy.mil Ext. 7225 Kimball Thompson EA, Aviation Safety Programs [email protected] Ext. 7226 4. Naval Safety Center Supports the Fleet Aviation Cdr. John Klemenc Aircraft Operations Division [email protected] Ext. 7203 Features Topside Survey Team Cdr. Bob Standley Aircraft Mishap Investigation Division [email protected] Ext. 7236 By Dan Steber Cdr. Kevin Brooks Aeromedical Division Sharing knowledge and best practices with more than 90 [email protected] Ext. 7268 Cdr. Allen McCoy ORM Division squadrons a year. [email protected] Ext. 7266 6. Aviation Culture Workshops Overview and Up- A n a l y s t s Cdr. John Klemenc NATOPS/WESS Program Manager date, including the top 10 hazards to operational [email protected] Ext. 7203 Leslee McPherson MISREC/WESS/ATC excellence in FY07 [email protected] Ext. 7245 Cdr. John Morrison Culture Workshop [email protected] Ext.
    [Show full text]
  • Launch Bar Dynamics Character Analysis of Carrier-Based Aircraft Catapult Launch
    applied sciences Article Launch Bar Dynamics Character Analysis of Carrier-Based Aircraft Catapult Launch Qidan Zhu 1,*, Peng Lu 1,* , Zhibo Yang 1, Xun Ji 2 , Yu Han 1 and Lipeng Wang 1 1 College of Automation, Harbin Engineering University, Harbin 150001, China 2 School of Marine Electrical Engineering, Dalian Maritime University, Dalian 116026, China * Correspondence: [email protected] (Q.Z.); [email protected] (P.L.) Received: 25 June 2019; Accepted: 28 July 2019; Published: 30 July 2019 Abstract: The launch bar is a unique device of carrier-based aircraft, which is connected to the nose gear and shuttle. In order to avoid the launch bar striking the flight deck after the launch bar pops out of the shuttle, it is very important to research the dynamics performance of the launch bar. This paper establishes a staged mathematical model of catapult launch including the launch bar, a steam-powered catapult, a holdback bar, and a carrier-based aircraft. This article studied the effect of the mass of the launch bar, restoring moment of the launch bar, and center of gravity position of the launch bar on the dynamics performance of the launch bar. The results showed the following: (1) we could reduce the risk collision of the launch bar and deck by reducing the mass of the launch bar, increasing the restoring moment, and shifting the center of gravity position of the launch bar; (2) under the working condition of this article, we changed the center of gravity position of the launch bar to control the sink of the launch bar end, having the most obvious effect, and we reduced the mass of the launch bar, having the least effect on controlling the sink of the launch bar end; however, reducing the mass of the launch bar could also greatly reduce the risk collision of the launch bar and deck; (3) in order to avoid the launch bar striking the flight deck, the restoring moment of the launch bar must overcome the sum of other moments.
    [Show full text]