Download or read book Success Stories written by and published by . This book was released on 2001 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The RAH 66 Comanche Helicopter written by Arthur W. Linden and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "On December 5, 2003, Lt. Gen Richard A. Cody, Army Deputy Chief of Staff and an experienced aviator, flew the Comanche. According to the January 2004 issue of National Defense he "...gave the aircraft a stellar review. ...Cody said that the Comanche had 'exceeded his expectations' and was particularly impressed by the rotor system, engine response and control. Cody also reportedly said the aircraft was 'easy to fly' and should be put into the hands of soldiers as soon as possible." Twelve weeks later the program was cancelled. So, what happened? How did Comanche become expendable? How did a program that was originally scheduled to enter Low Rate Initial Production in 1996 get delayed to 2011? How did an aircraft originally designed to replace the Army's light scout/attack fleet grow to become a virtual replacement for the much larger, heavier AH-64 Apache? This is a story of great accomplishment and much frustration. This is the Comanche history, as told by the some of the key members of the Comanche development team"--

Download or read book A Case History of the United States Army RAH 66 Comanche Helicopter written by Jason L. Galindo and published by . This book was released on 2000-03-01 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: The RAH-66 Comanche Helicopter was initiated as the Light Helicopter Family (LHX) in 1982 when an Army Aviation Mission Area Analysis (AAMAA) identified the need for an armed reconnaissance aircraft. Eighteen years later, the program has yet to reach a Defense Acquisition Board Milestone II review. This thesis described the history of the RAH-66 Comanche Helicopter acquisition program during these ears. The research focused on the question of what significant events and issues have occurred over the course of the Comanche's development that have allowed it to remain a viable program. The research draws several conclusions from the analysis of the Comanche's history. Mainly, despite the significant duration of the program, a valid need for an armed reconnaissance platform still exists. Secondly, the innovative program management of Comanche has maintained a positive reputation for the program. Finally, the loss of Comanche at this point in time would severely impact the defense helicopter industrial base.

Download or read book Success Stories written by and published by . This book was released on 2001* with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Army Aviation written by Christopher C. Bolkcom and published by . This book was released on 2002 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Army Aviation written by Christopher Bolkcom and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Although it has been a high priority Army program, a number of factors have complicated the RAH-66 Comanche program. Since its inception, the program has been restructured several times–postponing the initial operational capability (IOC) and increasing overall program costs. Presently, there is debate within the Army regarding whether the program should be reduced significantly to make funds available to pursue other modernization priorities.

Download or read book Comanche Helicopter written by U S Government Accountability Office (G and published by BiblioGov. This book was released on 2013-07 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pursuant to a congressional request, GAO reviewed the Army's development of the RAH-66 Comanche helicopter. GAO found that: (1) the Comanche's advanced capabilities, such as its avionics and targeting systems, improved engines, and lower detectability, are expected to improve the Army's ability to operate on future battlefields; (2) the distinction between the roles of the Comanche and the AH-64 Apache attack helicopter have been blurred since the advanced attack capabilities planned for the Comanche will enable it to perform the same missions and, in some cases, surpass the Apache's attack mission capabilities; (3) the Army anticipated that the Comanche would be relatively inexpensive to buy and maintain, but its unit cost in escalated dollars has increased more than 40 percent since 1988; (4) the Comanche maintenance needs could be higher than the Army's anticipated goal of 2.6 maintenance man-hours per flight hour, which would require the Army to either add maintenance staff or reduce the aircraft's planned 2,200 flying hours per year; (5) the Army continues to experience some technical risks in some of the aircraft's essential components, such as the mission equipment package and the targeting detection system, which could significantly reduce the Comanche's ability to navigate and communicate and cause the Army to incur significant additional costs; and (6) since significant developments have occurred that could affect the Comanche's requirements, such as a diminished threat, planned force reductions, and planned upgrades to other helicopters, it is an appropriate time to assess the program's viability to ensure that any future decision to buy the Comanche is appropriate.

Download or read book RAH 66 Comanche Helicopter Key to Future Army Warfighting written by and published by . This book was released on 2000 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Autograph Letter Signed from Lillie Langtry Brunswick Boston to William Winter written by and published by . This book was released on 1853 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Thanks him for his kind words and discusses what type of plays may or may not be popular with audiences. Mentions her upcoming travels and a Mr. French.

Download or read book RAH 66 Comanche written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: GlobalSecurity.org, located in Alexandria, Virginia, offers a profile about the RAH-66 Comanche, an armed reconnaissance helicopter being developed for the U.S. Army. The first U.S. Army Comanche unit will be operationally equipped in 2006. GlobalSecurity.org describes the deployment, specifications, history, and operations of the RAH-66 Comanche. Images of the helicopter are available.

Download or read book Financial Management of the RAH 66 Comanche Helicopter Program written by and published by . This book was released on 1998 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the second of a series of reports on the audit of the acquisition of the RAH-66 Comanche. This report addresses issues pertaining to the earned value management system, the award fee, and life-cycle costs. The Army spent $3.6 billion in research, development, test and evaluation funds through FY 1997 and is planning to spend and additional $4.3 billion through FY 2009. The Army plans to begin fielding the helicopter in 2006 for improved armed reconnaissance capability. Audit Objective. The audit objective was to evaluate the overall management of the Comanche Program. The specific objective of this portion of the audit was to evaluate the financial aspects of program management. The previous report, Inspector General, DoD, Report No. 98-125, covered the protection of the Comanche helicopter against radio frequency weapons, and a subsequent report will cover acquisition issues. We also reviewed the adequacy of the management control program as it applied to the specific stated audit objective. Audit Results. The Cost Performance Reports did not present an informative picture of the Comanche Program. Also, the process for determining the award fee was not fully documented. In addition, the life-cycle cost was underestimated.

Download or read book Acquisition Acquisition Management of the RAH 66 Comanche D 2003 087 written by and published by . This book was released on 2003 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Army, DoD, and other officials interested in the actions taken by the Army to restructure the RAH-66 Comanche Helicopter Program should read this report. The report discusses the action the Army took to restructure, reorganize, and improve the program and reduce the level of program risk.

Download or read book M glichkeiten und Unm glichkeiten in Oesterreich written by and published by . This book was released on 1786 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comanche RAH 66 21st Century Multi Mission Helicopter written by and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The end of the Cold War did not bring an end to the challenges facing the defense of the United States. In fact, the world has become more unstable with the dismantling of the Soviet Union. The flow of sophisticated arms to anyone with hard currency has increased regional instability. Ethnic and religious strife has re-emerged. And as the armed forces of small countries acquire high technology weapons, the threat of eventual American involvement increases. Shrinking American defense budgets and reduced U.S. presence overseas will require a smaller, highly mobile Army. An Army that can rapidly deploy to trouble spots around the globe, find and defeat a wide range of threats, and be supportable in the field without a burdensome logistics tail. DoD studies reveal that battlefield success is heavily contingent on good reconnaissance. And Desert Storm proved that satellite and fixed wing reconnaissance assets cannot provide the close battle target information needed in highly fluid tactical situations. Neither can the Army's current light helicopter fleet. The 0H-58, OH-6, and AH-1 light helicopters are over 30 years old when the first Comanche is fielded. They lack range, speed, payload, and agility. They are expensive to operate, especially in harsh desert environments. They lack low observable features necessary to operate and survive on the modern battlefield, and are vulnerable to ground fire. They cannot operate safely at night or in adverse weather. And, they cannot be upgraded to meet the challenges the U.S. will face in the future. Only RAH-66 Comanche has been designed to fulfill these requirements and enhance the effectiveness of Army Force Projections.

Download or read book Analysis of Potential Structural Design Modifications for the Tail Section of the RAH 66 Comanche Helicopter written by Vincent M. Tobin and published by . This book was released on 1997-06-01 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Army RAH-66 Comanche Helicopter made its first flight in January of 1996. Its current structural configuration, however does not meet the Army's requirements for radar signature. Structural configurations of the tailcone that meet radar cross-section requirements tend to lack sufficient structural stiffness due to the presence of Kevlar in place of graphite on the outer mold line. This thesis investigates potential structural design modifications to the Comanche tailcone that would move the design closer to meeting both its structural and radar signature requirements. Geometry modifications with baseline (current configuration) materials increased torsional stiffness by nine percent. Structural geometry modifications using radar signature compliant materials reduced torsional stiffness by 10 percent. The geometry changes analyzed produce structural performance improvements insufficient to allow the use of radar-compliant materials without further geometry changes.

Download or read book Structural Design Analysis of the Tail Landing Gear Bay and the Vertical Horizontal Stabilizers of the RAH 66 Comanche Helicopter written by Brian Shoop and published by . This book was released on 1997-09-01 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The RAH-66 Comanche's stealth design requires the use of radar- absorbing material (RAM) on the outer skin of the aircraft. The reduced stiffness properties of RAM produce insufficient tail torsional stiffness, necessitating the use of non-radar-absorbing graphite on the outer skin of the tail section. This thesis investigates structural design modifications to increase the tail section's stiffness to allow the use of RAM on the outer skin and still meet all structural requirements. An original model represents the prototype aircraft at first flight. The goal is to create a model using RAM on the outer skin that watches the structural stiffness of the original model. This thesis builds on earlier work conducted at the Naval Postgraduate School (NPS). Two new design modifications to the tailbone are developed. The best modification increases the torsional stiffness of a baseline model by six percent. Integrating earlier NPS modifications increases torsional stiffness by 12 percent. When RAM is applied to the outer skin of the modified model, torsional stiffness is reduced by only six percent from the baseline as compared to a 24 percent reduction with no modifications. Additional modifications to the vertical and horizontal stabilizers further increase structural stiffness and reduce weight.

Download or read book Finite Element Modeling of the RAH 66 Comanche Helicopter Tailcone Section Using Patran and Dytran written by Mark S. Gorak and published by . This book was released on 2001-06 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Army contracted Boeing-Sikorsky to develop the RAH- 66 Comanche, a new, armed reconnaissance helicopter that features stealth technology designed to improve survivability when operating in hostile environments. Ballistic testing is required on any new technology, to include the Comanche, prior to fielding. Computer based simulations are being employed to reduce the requirements for expensive live fire testing. This thesis uses computer programs called PATRAN and DYTRAN from MSC Software Corporation to build the model and simulate the effects of an explosive round detonating in the Comanche tailcone section. This thesis describes in great detail the process of creating and modifying the model in PATRAN to most accurately depict the Comanche tailcone section and creating the input decks for DYTRAN to run the analysis. A test case involving an explosion with a high amount of explosive energy, or specific internal energy (SIE) was simulated. From this test, several results are shown to display the capabilities of DYTRAN. These results, when compared with live fire data, can be used to validate the computer-based simulation in order to reduce the requirements of expensive live fire testing.