1944 - 1945 Trommsdorff Tip-Ramjet Propulsion
(Düsenrad, 3-Flügeligen Propeller, Strahlrad, Staustrahlpropeller, Überschall Staustrahlpropeller)
In addition to the well-known ramjet projectiles, Trommsdorff apparently worked on an aircraft propulsion system. The Trommsdorff projectiles were intended to serve as tip jet propulsion, similar to the propulsion system of the Focke-Wulf Triebflügel. The documents listed below do not indicate for which aircraft type or other project this engine was intended.
[1] November 20, 1944
Meeting with Trommsdorff on November 17, 1944:
After reviewing the documents and calculations prepared by Dr. Trommsdorff, he reported on his collaboration with Major Schrödter of General Galland's staff, a collaboration initiated by us (Reichsforschungsrat Lindau).
Trommsdorff calculated Schrödter's suggestion to use the jet propulsion unit (Strahlantrieb) as an engine and obtained compelling results. He stated that a power-to-weight ratio of 20 grams per horsepower was entirely achievable at a peripheral speed of 400–500 m/s for the jet wheel (Düsenrad) or a three-bladed propeller, at the tip of which the Trommsdorff propulsion unit could be mounted. The thermal efficiency was estimated at 20–30%.
The major advantage of this Trommsdorff engine lies in its ability to burn even very low-grade heavy oils as aircraft fuel. Theoretically, the use of coal dust also appears to be possible.
[2] January 15, 1945
Experimental setup for jet propulsion with Trommsdorff projectiles:
(Versuchsanordnung für Strahlantrieb mit Trommsdorff-Treibkörpern)
The purpose of the experiments to be carried out is to investigate the possibility of mounting Trommsdorff projectiles on a rotating body in order to convert the kinetic energy of the projectiles into rotational motion, i.e., to use the projectile as a propulsion engine.
Source:
Bundesarchiv
Signatur: R 26-III/68
[1] Page: 91
[2] Page: 159 - 183 (Drawings)
Direct Link:
https://invenio.bundesarchiv.de/invenio/direktlink/255f5981-0634-44bc-aefa-033555344ec1/
(Düsenrad, 3-Flügeligen Propeller, Strahlrad, Staustrahlpropeller, Überschall Staustrahlpropeller)
In addition to the well-known ramjet projectiles, Trommsdorff apparently worked on an aircraft propulsion system. The Trommsdorff projectiles were intended to serve as tip jet propulsion, similar to the propulsion system of the Focke-Wulf Triebflügel. The documents listed below do not indicate for which aircraft type or other project this engine was intended.
[1] November 20, 1944
Meeting with Trommsdorff on November 17, 1944:
After reviewing the documents and calculations prepared by Dr. Trommsdorff, he reported on his collaboration with Major Schrödter of General Galland's staff, a collaboration initiated by us (Reichsforschungsrat Lindau).
Trommsdorff calculated Schrödter's suggestion to use the jet propulsion unit (Strahlantrieb) as an engine and obtained compelling results. He stated that a power-to-weight ratio of 20 grams per horsepower was entirely achievable at a peripheral speed of 400–500 m/s for the jet wheel (Düsenrad) or a three-bladed propeller, at the tip of which the Trommsdorff propulsion unit could be mounted. The thermal efficiency was estimated at 20–30%.
The major advantage of this Trommsdorff engine lies in its ability to burn even very low-grade heavy oils as aircraft fuel. Theoretically, the use of coal dust also appears to be possible.
[2] January 15, 1945
Experimental setup for jet propulsion with Trommsdorff projectiles:
(Versuchsanordnung für Strahlantrieb mit Trommsdorff-Treibkörpern)
The purpose of the experiments to be carried out is to investigate the possibility of mounting Trommsdorff projectiles on a rotating body in order to convert the kinetic energy of the projectiles into rotational motion, i.e., to use the projectile as a propulsion engine.
Source:
Bundesarchiv
Signatur: R 26-III/68
[1] Page: 91
[2] Page: 159 - 183 (Drawings)
Direct Link:
https://invenio.bundesarchiv.de/invenio/direktlink/255f5981-0634-44bc-aefa-033555344ec1/
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