Werner Pfennig—Dr. Hauptmann

Werner Pfennig’s relationship with Dr. Hauptmann is an apprenticeship built on genuine intellectual recognition but governed by a profound imbalance of power. Dr. Hauptmann gives Werner the equipment, problems, and sustained attention that allow his ingenuity to flourish; he also channels that ability into military work and makes clear that Werner cannot choose when or how to leave. The mentorship thus becomes both the condition of Werner’s technical advancement and an instrument of his confinement.

Recognition in the laboratory

Dr. Hauptmann first distinguishes Werner through practical tests in the technical sciences laboratory. A diminutive, rosy-cheeked instructor, he removes his brass-buttoned coat, has the cadets retrieve hinged metal boxes from a locked cabinet, and sets a Morse-code circuit as a timed exercise. The boxes contain equipment far beyond anything Werner has previously handled: gears, lenses, fuses, springs, shackles, resistors, copper wire, an instrument hammer, and a battery as large as a shoe. While the other boys hesitate over the unfamiliar parts, Werner quickly assembles a working oscillator from the battery, two rectangles of sheet metal, penny nails, and the hammer. Dr. Hauptmann tests the circuit and confirms that it works.

The professor immediately raises the difficulty. With a disk-shaped magnet, a wire, a screw, and the battery, he asks the class to make a simple motor, but his attention rests on Werner. Werner places the magnet on the screw and completes the circuit; the screw and magnet spin after no more than fifteen seconds of work. The speed and confidence of these demonstrations reveal why Dr. Hauptmann selects him: Werner does not merely follow a diagram but grasps how a small set of materials can be made to operate as a system. For Werner, whose earlier intellectual life had centered on questions in the attic room at Children’s House, the laboratory makes that private curiosity visible to an expert who can give it practical form.

From aptitude to military project

Dr. Hauptmann’s interest soon develops into a demanding, continuing collaboration. He summons Werner to his office, a firelit room lined with books and scientific models, and asks whether Werner understands how two known points can be used to locate a third, unknown one. When Werner says he believes he can solve the triangle, Dr. Hauptmann gives him his desk and a pencil. The mathematical question becomes the basis for Werner’s nightly laboratory work: after dinner, every night, Sundays included.

The work is not confined to abstract problems. Dr. Hauptmann wants Werner to improve a directional radio transceiver so that it can be retuned quickly across multiple frequencies and measure the angle of received transmissions. Werner reconfigures nearly everything in the design. Their working rhythm is uneven: on some evenings Dr. Hauptmann explains the function of a solenoid or resistor at length, identifies a spider in the rafters, or talks about scientific gatherings and new possibilities in physics; on others he closes himself off, permits no questions, and supervises in silence. The contrast makes his attention valuable but unpredictable. Werner is being taught, yet he is also being trained to work within an assignment whose purposes he is not fully told.

Werner senses that the triangles must serve some concrete purpose and asks himself what the transceiver is for, what points Dr. Hauptmann knows, and why he needs to find another. The professor repeatedly reduces the method to pure mathematics, urging Werner to accustom himself to that way of thinking. Later, after a successful test of the transceivers outdoors, Dr. Hauptmann identifies the triangles as the work’s underlying method. The equipment’s function and Werner’s questions give the technical lessons a practical consequence: his mathematical skill is being applied to the directional detection of radio transmissions, not pursued as an isolated classroom exercise.

Favor, authority, and Werner’s request to leave

The relationship offers Werner privileges alongside work. In Dr. Hauptmann’s office, Frank Volkheimer is present as a powerful upperclassman and a figure of school legend; during a later outdoor test, the hounds play around Volkheimer while Dr. Hauptmann celebrates the working transceivers and passes Werner his brandy. Werner has pleased the professor. Yet Volkheimer’s quiet reminder that the work is only numbers complicates the professor’s preferred separation between mathematics and its use. Werner, meanwhile, is already troubled by the unspoken purpose of their project. Dr. Hauptmann’s mentorship draws him into a world of equipment, experiments, and scientific possibility while leaving him uncertain about the human ends those tools will serve.

In January 1942, Werner goes to Dr. Hauptmann’s office and asks to be sent home, offering to work to pay his train fare. The setting emphasizes the distance between them: the office is glowing and warm, schematics lie beside the professor, and his hounds rest before the fire, while Werner stands holding his cap. Dr. Hauptmann answers not as a teacher considering a pupil’s appeal but as the person who controls his future. He reminds Werner that he is an orphan without allies and threatens to make him into whatever the authorities require, including a criminal or an adult sent to the front. The professor also invokes the privileges Werner has received—concerts, chocolates, and warmth—as if those benefits make the request for freedom an act of ingratitude.

Dr. Hauptmann refuses the request and tells Werner that orders will come when the school is ready to issue them. Werner is reminded that they serve the state, not the other way around. He is still expected in the laboratory that night, as usual, though the chocolates and special treatment are to stop. The exchange exposes the structure beneath their apparent closeness: Dr. Hauptmann has invested in Werner’s ability, but that investment does not give Werner agency over his own life. Rather, the professor’s access and influence make the threat credible.

Departure and the consequences of mentorship

In March 1942, Dr. Hauptmann calls Werner to his office again. Half-packed crates are scattered across the floor, the hounds are absent, and the professor paces before explaining that he has been called to Berlin to continue his work. Werner responds that he will have the best equipment and the best minds there. Dr. Hauptmann ends the conversation without further explanation. The brief exchange reveals a change in their circumstances: the teacher who had directed Werner’s nightly work is leaving the school, while Werner remains behind, still subject to its authority.

That separation does not end Dr. Hauptmann’s influence over Werner’s future. Later, a school official tells Werner that the former technical sciences professor drew attention to a discrepancy in Werner’s age: Werner is eighteen, not the sixteen he had claimed. Dr. Hauptmann has arranged for him to be sent to a special technology division of the Wehrmacht. The evidence of his mentorship therefore culminates not in Werner’s release or independent career, but in a military assignment secured through the professor’s intervention. Dr. Hauptmann’s recognition was real, and so was the technical education it enabled; the same recognition made Werner useful to institutions that could decide his fate without his consent.