Educational purpose only. This post documents historical practices related to executions and aims to educate about historical procedures. We do not glorify violence or hate.
Why the Fallbeil Execution Machine Had a Slanted Blade: The Engineering Behind the Nazi Guillotine
The Fallbeil was one of the most shocking execution devices used during World War II. Known for its brutal efficiency, this German guillotine was designed to be faster and more reliable than its French predecessor. But why was the blade slanted?
This article examines the engineering, history, and improvements that made the Fallbeil one of the most efficient execution machines ever built.
1. The Origin of the Slanted Blade
The slanted blade was not a Nazi invention — it was a refinement of earlier designs. When the French guillotine was developed in 1792, surgeon Antoine Louis and German harpsichord maker Tobias Schmidt experimented with both straight and curved blades on animals and human cadavers.
They discovered that a diagonal blade was more reliable than a straight one. A straight blade would sometimes crush the neck rather than cleanly sever it. The slanted edge created a shearing effect, similar to a paper cutter, which made the cut cleaner and faster.
King Louis XVI himself reportedly raised concerns about the effectiveness of a curved blade and suggested testing alternatives. Ultimately, the diagonal design proved superior.
2. The Physics of the Slanted Edge
The angled blade provided a mechanical advantage. A 45-degree angle on a blade can improve cutting performance by up to 40% compared to a straight blade. The shearing motion reduced the force required to cut through bone and tissue, making the execution quicker and more certain.
This principle is still used in modern paper cutters, where a slanted blade ensures a clean and even cut.
3. The Fallbeil: A German Improvement
The Fallbeil was the German variant of the guillotine. While the French guillotine was often made of wood, the Fallbeil was primarily constructed of metal, making it more durable and consistent. Many Fallbeils were permanently installed in prisons, ensuring they were always ready for use.
One of the key improvements came in 1939 from Johann Reichhart, Germany’s most prolific executioner. He replaced the tilting board with a fixed bench, reducing the time required for each execution to just three to four seconds. This allowed executions to be carried out rapidly — in some cases, every three minutes.
4. Efficiency and Standardization Under the Nazis
The Nazi regime sought to standardize executions across Germany. In 1936, the Reich Ministry of Justice decreed that all beheadings were to be carried out using the Fallbeil. The method was chosen because it was fast and efficient, while the axe was seen as too “barbaric” for a modern state.
Central execution sites were established across the Reich, and executioners were well-paid for their work — 3,000 Reichsmarks per year, plus bonuses for each execution. During the Nazi period, thousands of people were executed by Fallbeil, including resistance fighters like Hans and Sophie Scholl of the White Rose group.
5. The Psychological Consideration
There was also a psychological aspect to the machine’s design. In some Fallbeil models, the slanted blade was hidden from view by a steel plate when raised, so the condemned could not see it as they were led to the device. This was intended to prevent additional fear and panic, making the prisoner easier to handle — though this was practical rather than humanitarian.
Primary Sources:
Historical records of the Fallbeil and guillotine designs
Reich Ministry of Justice decrees (1936)
Accounts of executioner Johann Reichhart’s innovations
Studies on the mechanics of slanted blades
Post-war documentation of Nazi execution procedures