Aerospace Engineering Commons^™

Mcmaster's Master Work On Geopolitics And The Future Of America: A Review Of Battlegrounds: The Fight To Defend The Free World (Ny: Harpercollins, 2020), Noah Grady

Space and Defense

Student Voice

In his most well-known work, Vom Kriege, Carl von Clausewitz suggested war is a continuation of policy. He proposed governments primarily use warfighting to achieve political ends. Since America's independence in 1776, geopolitics have shaped the nature of America's conflicts overseas. In the last century, the U.S. endured several different geopolitical phases. Despite Woodrow Wilson's reelection slogan, "He kept us out of war," America involved itself in an eruption of imperial interests in Europe during the Great War. Two decades after the First World War, on December 7, 1941, the Japanese Naval Air Service attacked Pearl Harbor. President …

Efficacy Of The National Security Innovation Network's Hacking / Designing For Defense Programs, Max Di Lalla

Space and Defense

Student Voices

The National Security Innovation Network requires further reform to achieve its hope for long-term effects on defense innovation.

The National Security Innovation Network (NSIN) was crated in 2016 after a rebranding of the MD5 National Security Technology Accelerator and is actively changed with the mission to "build networks of innovators that generated new solutions to national security problems." NSIN is just one of the plethora of government organizations tasked with some form of "innovation." As the world begins to change and the United States no longer enjoys a period of unrivaled growth and security, government, military, and private …

Climate Change As A Dangerous Accelerant Of Mass Atrocity, Jesse Jenkins

Space and Defense

Student Voices

Investigating potential connections between mass atrocity and climate change reveals that the vulnerability of food systems may be valuable predictive factor in understanding which states will respond to climate change with violence.

An ongoing study by Dr. John Riley and Lt Col. William Atkins shows that strong states tend to be able to cope well with the effects of climate change and not turn to violence. They also argue that the weakest states are already broken and on the path of committing a mass atrocity regardless of the effects of climate change. This leave a middle section of …

No Method To Madness: The Failures Of Madman Diplomacy In All Its Forms, Henry Gilchrist

Space and Defense

Student Voices

Madman diplomacy fails to work as advertised. Internal contradiction of the strategy in it s ideal form reduce the chances it will succeed in future crises.

Effective deterrence requires an actor to pair powerful capabilities with a believable will to use them. The world of United States' dominance has relegated the question of will to the periphery. However, the U.S. is emerging from its hegemony with enough self-awareness to acknowledge the painful consequences of this relegation. Democratic restraint has historically played an important role in nuclear deterrence for obvious reasons, and the issue of will deficit is not …

Boosting Space Diplomacy At State, David A. Epstein

Space and Defense

Notes from the Field:

Space diplomacy remains an esoteric specialty of State.

With ever-increasing speed, humanity is expanding the scope of its activities in outer space, thanks to private enterprise as well as via national pursuits. In the last two years alone, for example, the number of active and defunct satellites in lower Earth orbit has increase by more than 50 percent, to around 5,000, with plans to add tens of thousands more in the coming years. Equally surprising, these satellites are owned and operated by nearly 100 difference countries and organizations around the world - no just the small …

Contextualizing Russia's Hypersonic Threat: Perceptions, Motivations, And Strategic Stability., Jeffery D. Taylor

Space and Defense

Rather than specific military objectives in Europe, Russian hypersonic missile development manifests deep-rooted perceptions of the United States and NATO undermining strategic through missile defense.

Future Directions For Great Power Nuclear Arms Control, T. Justin Bronder

Space and Defense

Extending the current New START regime can help maintain traditional strategic stability; however, such an approach fails to address destabilizing trends related to non-nuclear strategic technologies and China's expanding forces.

Arms control in the nuclear age has proved a useful tool of national security, meeting ends as diverse as reducing the risks of nuclear war to channeling strategic competition. Yet recent trends indicate arms control may be at an inflection point; the suitability of this tool in general and the viability of securing new agreements specifically are both unclear. The New Strategic Arms reduction Treaty (New START) extension somewhat reverses …

Editor's Note Vol. 13 No. 1, Damon Coletta

Space and Defense

Editor's Note

Table Of Contents Vol. 13 No. 1, Space And Defense

Space and Defense

No abstract provided.

Front Matter Vol. 13 No. 1, Space And Defense

Space and Defense

No abstract provided.

Notes For Contributors, Space And Defense

Space and Defense

No abstract provided.

Book Review: Spies, Lies, And Algorithms: The History And Future Of American Intelligence, Claire Benedix

Space and Defense

The security environment is entering a new threat landscape; one that must be fought in both the physical and virtual world. The seemingly instantaneous progress of digitization and the cyberspace domain threatens to destabilize traditional warfare strategies and intelligence norms. Amy Zegart, an American academic and leading national security expert, outlines the history and future of American intelligence with a specific emphasis on emerging cyber threats in the digital age. In Spies, Lies, and Algorithms, Zegart explains the roles of technological breakthroughs in a world of big data by chronicling the history of intelligence education and organizational reform, the evolution …

Communicating Deterrence Thresholds In Cyberspace Through Global Normas, Leila Yanni

Space and Defense

Student Contribution.

Cyberspace refers to a purely virtual arena that has become increasingly relevant in the past few years, as countries develop more cyber weapons and carry out more cyber attacks. The cyber domain has a large scope because of its virtual nature, and it has a high potential threat level as the full impact of cyber capabilities are not even understood yet. As the possibilities for destructive cyber weapons are virtually endless, the threats are also virtually endless. Because of the growing relevance of cyberspace and the high danger level, deterrence thresholds are a pressing issue in this domain. …

Us Blindness To Russian, Chinese Cultural Motives Risks Nuclear Escalation And Ill-Fit Response, Ryan C. Bushman

Space and Defense

Student Contribution.

This paper was authored prior to the 2022 Russian invasion of Ukraine and the publication of the 2022 Nuclear Posture Review.

The United States has taken numerous miscalculated steps with respect to foreign and nuclear policy based on an incomplete understanding of the motives of both China and Russia. This is, in part, due to a failure to acknowledge these nations' strategic culture - an enduring system of values that influence a nation's use of military force. As the US is about to put forth its 2022 Nuclear Posture Review (NPR), it is critical that future responses to …

Keynote Address: Dr. Kori Schake, Kori Schake

Space and Defense

2022 United Sates Strategic Command Academic Alliance Conference and Workshop, Mark 30-April 1, 2022, Conducted via Zoom

Addressing The American Approach To Emerging Technologies: Utilizing The Ai Arms Race To Highlight The Need To Develop Public-Private Partnerships In C4isr And 5g, Hugh Harsono, Nicholas Ondovcsik

Space and Defense

he world of emerging technologies has changed countries' access and placement to these digital enablement tools of the future, with blockchain, decentralization, and a myriad of other compounding technologies accelerating the pace of development and growth combining the physical and the digital world. Historically, America's Silicon Valley has led the world's development of new technologies, particularly during the latter part of the digital revolution. In contrast, China focused on enhancing its manufacturing capabilities, becoming a world leader by capitalizing on the ever-connected world and leveraging its economic prowess. These roles became reversed in the early-2000s,1 when China first surpassed the …

Technology: The Air And Space Force's Barrier To Innovation, William F. Cosgrove

Space and Defense

The Department of Defense is a rank-and-file institution that values orders adherence and a zero-error mentality, which has led commanders to be risk averse. This is exemplified in the cybersecurity realm, with controls attempting to protect all information, including uncontrolled unclassified information. Efforts that attempt to employ a new or different type of information technology are made very difficult by a number of existing policies. Additionally, customer surveys, service initiatives, and open user complaints have revealed dissatisfaction with Department of the Air Force (DAF) IT services. The millennial and post-millennial generations are the most technologically adept, yet the majority of …

A Great Nuclear Rejuvenation: What China Can Do With An Expanded Nuclear Arsenal, Grant Van Robays, Chloe Reynolds, Will Jackson, Tom Hammerle

Space and Defense

China's hypersonic glide vehicle test in October 2021 prompted widespread concern in the general public and within the defense intelligence community. General Mark A. Milley, Chairman of the Joint Chiefs of Staff, said the test was "very close" to a Sputnik moment.1 More than mere power projection by the People's Republic of China (PRC) and Chinese Communist Party ( CCP), the hypersonic test is an exemplification of rapid advancements in Chinese strategic nuclear forces writ large. Improved nuclear weapons capabilities will offer Beijing greater leverage in regional and international disputes with an increased capacity to coerce and compel adversaries into …

Editor's Note, Michelle Black

Space and Defense

No abstract provided.

Table Of Contents, Space And Defense

Space and Defense

Table of contents for Volume 14 issue 1 of Space and Defense

Front Matter, Space And Defense

Space and Defense

No abstract provided.

Full Volume 13, Issue 1, Seyma Tufan

Space and Defense

No abstract provided.

Enhancements To Nuclear Thermal Propulsion Rockets, Kimberly Gonzalez

UNLV Theses, Dissertations, Professional Papers, and Capstones

Nuclear thermal rocket propulsion has been proposed as a highly efficient technology for space vehicles traveling from earth orbit to the moon, Mars, and other locations in the solar system. With twice the performance of a chemical rocket, nuclear thermal propulsion (NTP) uses the thrust produced by heating hydrogen gas within a thermal nuclear reactor where the exhaust is then passed through a de Laval nozzle to produce supersonic flow. NTP engines were the subject ofthe NERVA experiments at the Nevada Test Site in the 1970’s, and they produced a specific impulse of up to 900 seconds which is almost …

Viability Of Energy And Fuel Sources For Interstellar Travel; Design And Feasibility Of The Construction Of Manned Interstellar Space Shuttles, Lukas Mittelman

UNLV Theses, Dissertations, Professional Papers, and Capstones

The importance of proving the viability of interstellar transport and addressing its potential hazards and pitfalls is immense. If we do not look toward the future and examine what could be waiting for us, we are doing our children, our children’s children, and so on, a disservice. Here we must attempt to lay the groundwork for our future scientists, engineers, and adventurers. Asking and answering questions like, which propulsion and energy systems must we incorporate to send us through the cosmos? Will we utilize technologies known today, such as fossil fuel rockets, fission or fusion rockets, and antimatter drives (pion …

Performance Degradation Based On Importance Change And Application In Dissimilar Redundancy Actuation System, Yadong Zhang, Chao Zhang, Shaoping Wang, Rentong Chen, Mileta M. Tomovic

Engineering Technology Faculty Publications

The importance measure is a crucial method to identify and evaluate the system weak link. It is widely used in the optimization design and maintenance decision of aviation, aerospace, nuclear energy and other systems. The dissimilar redundancy actuation system (DRAS) is a key aircraft control subsystem which performs aircraft attitude and flight trajectory control. Its performance and reliability directly affect the aircraft flight quality and flight safety. This paper considers the influence of the Birnbaum importance measure (BIM) and integrated importance measure (IIM) on the reliability changes of key components in DRAS. The differences of physical fault characteristics of different …

Space And Defense – Volume Twelve – Number Two – Summer 2021, Space And Defense Journal

Space and Defense

No abstract provided.

Space And Defense – Volume Twelve – Number One – Winter 2021, Space And Defense Journal

Space and Defense

No abstract provided.

Impact Of Neutron Energy On Asteroid Deflection Performance, Lansing S. Horan Iv, Darren E. Holland, Megan Bruck Syal, James E. Bevins, Joseph W. Wasem

Faculty Publications

In the future, a hazardous asteroid will find itself on a collision course with Earth. For asteroids of moderate size or larger, a nuclear device is one of humanity's only technologies capable of mitigating this threat via deflection on a timescale of less than a decade. This work examined how the output neutron energy from a nuclear device standoff detonation affects the deflection of a notional asteroid that is 300 meters in diameter and composed of silicon dioxide at a bulk density of 1.855 g/cm³. 14.1 MeV and 1 MeV neutron energy sources were modeled in MCNP to …

Internet Of Things 36-Rotor Multicopter For Ionizing Radiation Surveying, Svetoslav Zabunov, Garo Mardirossian, Rositsa Miteva, Todor Kunchev

International Journal of Aviation, Aeronautics, and Aerospace

This paper presents an Internet of things 36-rotor unmanned aerial vehicle suitable for radiological surveying of buildings and facilities. The design of the 36-rotor multicopter platform is disclosed. The aircraft is used as a testbed for a lightweight gamma/beta/neutron ionizing radiation sensor closely coupled with the autopilot of the multirotor aircraft. A prototype of the drone and sensor was developed and initial tests were conducted. Test results are presented with data from measuring different radiation sources. The proposed novel design is compared to existing work and advantages to the latter were established.

Space And Defense – Volume Eleven – Number One – Spring 2019, Space And Defense Journal

Space and Defense

No abstract provided.