Engineer Military Bulletin

Köszöntő

Padányi József — 2025-07-24

köszöntő

Előszó

Lengyel László — 2025-07-24

Test Method of Special EOD Render Safe Procedure with Shaped Charges

Bukta Balázs — 2025-07-24

Render safe procedure with cumulative charges have an important role to play in the specialised tasks of a fire engineer. Since safety is the primary concern in these activities, the development of procedures is also aimed at this. In this paper, I will present a method that may be suitable for the implementation of reduced effectiveness destruction by cumulative charges. The study will provide results only in relation to the method and the design of the practical site, the type and construction of the cumulative charge being outside the scope of this paper. The successful tests carried out demonstrate the applicability of the method developed, even in the performance of specialised public service tasks.

Multipurpose River Drone

Czipó Levente — 2025-07-24

The potential of multipurpose river drones can open up numerous applications for users. Low production costs, remote control, and autonomous navigation all provide significant advantages while minimising the need for human intervention. Their development, driven by the integration of modern 3D printing and robotics technologies, further expands their range of application, reduces logistical demands, and enhances operational efficiency.

One-Ton Bombs from Budafok

Török László — 2025-07-24

In October 2018, two reports regarding suspected explosive devices were received by the Hungarian Defence Forces’ EOD Duty Office from Budafok-Tétény, the 22nd district of Budapest. In itself, this did not significantly differ from the unit’s routine tasks, considering the mission of the HDF 1st EOD and Riverine Guard Regiment. However, given the environment in which these devices were discovered – and knowing that both explosive devices, found just two days apart in the Danube river, weighed nearly one ton each – it is easy to see how complex the planning, coordination, and execution of such an extraordinary underwater bomb disposal operation must have been.

The Defusing of the German “34/35 cm Röchlinggranate 42 Be” Concrete Demolition Grenade Found in Hungary Using Water Jet Cutting Equipment

Zsolnay Gábor — 2025-07-24

Since the end of the war, rules and procedures have been established for the neutralization and disposal of known ordnance, which have made the work of bomb disposal experts safer. However, from time to time, explosive devices still emerge that challenge even the well-trained bomb disposal professionals. One such device was the German 34/35 cm Röchlinggranate 42 Be concrete-piercing grenade, which resurfaced in the late 1990s (hereinafter referred to as "Röchling grenade"). Successfully neutralizing this ordnance represented a task that spanned several generations of bomb disposal experts. This writing aims to present this special and rare projectile, as well as to describe its neutralization process.

The Role of Unmanned Technological Devices in Warfare

Kalla László — 2025-07-24

The emergence of robots and drones has fundamentally reshaped the nature of warfare. Technological advancements have made it possible to conduct precise and effective military operations while minimising the risk to human lives. These technological tools play a central role not only in reconnaissance but also in offensive operations, logistical support, and increasingly in the application of artificial intelligence (AI). In the future, robots and robotic systems may become key players in military conflicts around the world, raising ethical questions for which we are not yet fully prepared. Humanity’s goal must be the controlled and responsible use of artificial intelligence in all areas of life, including warfare.

Low-intensity Neutralisation Procedures and Their Relevance in EOD Tasks

Bokros Tünde Ibolya — 2025-07-24

This article summarises the so-called low order or low-intensity neutralisation procedures used during EOD or mine clearance work, within international and domestic terms. In many cases, these procedures still need to be refined, but at the same time, they have already proven their efficiency during humanitarian relief procedures, which could even be used during professional tasks of domestic EOD public service work. In addition to international experiences, we present tests and investigations carried out in Hungary and their results. The article also aims to represent a kind of change of attitude, as both military explosives and the procedures currently in use require more modern technologies that are better adapted to today's challenges.

Development of Training Devices and Equipment Since the End of World War II to Nowadays

Kelemen Ferenc — 2025-07-24

From my perspective proper training is crucial for carrying out bomb disposal tasks. Without training it cannot be safe. Well trained EOD2 masters and team leaders learn blasting technics, EOD procedures and ammunition types for more than 8 years. Hungarian EOD team leaders (technicians) are confidently informed in the world of explosives or ammunitions. After the Second World War, Hungary needed the well trained soldiers of Royal Hungarian Army. Mine clearing in Hungary was a huge task for everyone.

Propaganda as a Weapon – Deploying the Propaganda Shells of the World Wars

Fazekas Judit — 2025-07-24

Throughout wars, alongside armed combat, information warfare has always played a prominent
role. During World War II, propaganda reached its targets not only through the media but also via
rather unconventional means: among them were explosive devices used specifically for propaganda
purposes, which operated on the borderline between physical attack and psychological influence.
The aim of this study is to examine the political, social, and military objectives these propaganda
tools served, as well as their impact on wartime psychology, public opinion, and the morale of
enemy forces. Special attention is given to instances where propaganda was directly linked to
explosive devices, such as the 122 mm Soviet propaganda shells. This research is significant not
only from a historical perspective but may also contribute to our understanding of contemporary
information warfare. By analysing World War II propaganda, we can shed light on how information
came to be used as a weapon and the forms it takes in modern conflicts. My choice of topic stems
from the belief that, alongside conventional armed combat, the diverse tools of psychological
warfare receive disproportionately less attention, primarily because their effects are less tangible
and harder to quantify than, for example, casualty rates.

Types and Technical Specifications of British General Purpose Aerial Bombs Used During World War II

Tótok Dávid István — 2025-07-24

The British manufactured general purpose aerial bombs used during World War II possessed several technical and military-engineering characteristics that remain relevant for modern explosive ordnance disposal activities. An analysis of the weight of British aerial bombs, ranging from 40 to 4,000 pounds, provides an opportunity to analyse the structural characteristics of bomb types, the use of explosives and the firing mechanisms. The study also touches upon less commonly used explosive materials – such as Amatex, Composition Exploding (C.E.), and the A.S.A. mixture – and presents the design and operation of high-risk initiation systems. The author’s aim is to support the development of essential knowledge among EOD personnel, with particular focus on the identification and technical interpretation of British origin explosive ordnance from the Second World War.

Possible Directions for the Development of River Mine Clearance Capabilities and Critical Infrastructure Protection Capabilities

Koch Norbert — 2025-07-24

The conflict that broke out in 2022 gave a new direction to the entire world and Europe in particular. A previously unimaginable war has come within our reach. The time that has passed since then reflects that a new Cold War is unfolding. The status quo as we have known it is changing. Hungary has begun to develop its military strength in time, but full renewal is a long and arduous process. In order to develop a defence force that can strike on several fronts, the weakest links must be strong. Since Hungary is a water-rich country and two major rivers run through the country, it cannot be left unprotected from the water either. The river guard, also known as the warship subdivision, has been present in the country for many decades and its primary task is to demine the water areas connected to domestic rivers and streams. After World War II, there were no contiguous minefields left in our waters, but in the current situation, no one can guarantee that this will remain the case.