- +18
James M. Acton, Saskia Brechenmacher, Cecily Brewer, …
{
"authors": [
"James M. Acton"
],
"type": "other",
"centerAffiliationAll": "dc",
"centers": [
"Carnegie Endowment for International Peace"
],
"collections": [
"Hypersonic Weapons"
],
"englishNewsletterAll": "",
"nonEnglishNewsletterAll": "",
"primaryCenter": "Carnegie Endowment for International Peace",
"programAffiliation": "NPP",
"programs": [
"Nuclear Policy"
],
"projects": [],
"regions": [],
"topics": [
"Security",
"Military",
"Nuclear Policy"
]
}Source: Getty
Hypersonic Boost-Glide Weapons
How do boost-glide weapons work? How effective will they be from a military standpoint?
Source: Science & Global Security
The United States, Russia and China are developing hypersonic boost-glide vehicles. A simple model of their trajectory is developed by assuming that the vehicle does not oscillate during the transition to equilibrium gliding. This model is used to analyze U.S. Department of Defense data on test flights for the Hypersonic Technology Vehicle-2. This glider's lift-to-drag ratio—a key performance parameter—is estimated to be 2.6. The model is also used to calculate the tactical warning time that a boost-glide attack would afford an adversary. Other aspects of boost-glide weapons’ military effectiveness are explored. Approximate calculations suggest that, compared to existing non-nuclear weapons, boost-glide weapons could penetrate more deeply but would be less effective at destroying silos. The distance at which a boost-glide weapon armed with a particle dispersion warhead could destroy a mobile missile is also calculated; it is expected to be significantly larger than for an explosive warhead....
This article was originally published in Science & Global Security. A supplement to the article can be found here.
About the Author
Jessica T. Mathews Chair, Co-director, Nuclear Policy Program
Acton holds the Jessica T. Mathews Chair and is co-director of the Nuclear Policy Program at the Carnegie Endowment for International Peace.
- Unpacking Trump’s National Security StrategyOther
- Trump Has an Out on Nuclear Testing. He Should Take It.Commentary
James M. Acton
Recent Work
Carnegie India does not take institutional positions on public policy issues; the views represented herein are those of the author(s) and do not necessarily reflect the views of Carnegie, its staff, or its trustees.
More Work from Carnegie India
- The Impact of U.S. Sanctions and Tariffs on India’s Russian Oil ImportsCommentary
This piece examines India’s response to U.S. sanctions and tariffs, specifically assessing the immediate market consequences, such as alterations in import costs, and the broader strategic implications for India’s energy security and foreign policy orientation.
Vrinda Sahai
- Military Lessons from Operation SindoorArticle
The India-Pakistan conflict that played out between May 6 and May 10, 2025, offers several military lessons. This article presents key takeaways from Operation Sindoor and breaks down how India’s preparations shaped the outcome and what more is needed to strengthen future readiness.
Dinakar Peri
- India and the Sovereignty Principle: The Disaggregation ImperativeBook
This book offers a comprehensive analysis of India's evolving relationship with sovereignty in a complex global order. Moving beyond conventional narratives, it examines how the sovereignty principle shapes India's behavior across four critical domains—from traditional military power to contemporary data governance.
Rudra Chaudhuri, Nabarun Roy
- Hidden Tides: IUU Fishing and Regional Security Dynamics for IndiaArticle
This article examines the scale and impact of Chinese IUU fishing operations globally and identifies the nature of the challenge posed by IUU fishing in the Indian Ocean Region (IOR). It also investigates why existing maritime law and international frameworks have struggled to address this growing threat.
Ajay Kumar, Charukeshi Bhatt
- Violence and Development Along the India-Pakistan Border in Jammu and KashmirBook
This book examines the impact of cross-border violence on communities living along the Line of Control and the International Border in Jammu and Kashmir, India.
Deep Pal, Surya Valliappan Krishna, Saheb Singh Chadha