Daimler Benz Postwar Turbo Engines

[Jemiba]

In 1962 DB showed the prototype of a turboprop engine with 1000 hp, designated as PTL-6, later changed to
DB-720. The program was dropped after about 57 hours fligt testing, using a modified Bell UH-1D. By replacing
the reduction gear with an axial compressor stage, it became the ZTL-6, later DB-730, another project was the
PTL-10 (DB-721), a turboprop engine with 2200 hp.

 

[Wurger]

I really miss a good book on Daimler-Benz`s ventures in aero engines, particularly from the 1920S to 1945 :'( .

 

[tartle]

Let us write it here then!

 

[Yankee_Aviator]

Does anyone have any details on the DB 721? Type of propeller used? Internal configuration? Weight? Intended applications?

 

[Apophenia]

Does anyone have access to Flugmotoren und Strahltriebwerke by Kyrill von Gersdorff & Kurt Grasmann (Bernard & Graefe, Koblenz, 1985)?

According to the Deutsche Nationalbibliothek entry, it has a few pages on those postwar Daimler-Benz engines (as well as the ST 190 ramjet).

Daimler-Benz entwickelt wieder Flugtriebwerke
DB 720/PTL 6 [page 104]
Daimler-Benz-Staustrahltriebwerk ST 190 [page 105]
DB 721/PTL 10 [page 106]
DB 730 und DB 731 [page 106]