by Horst Zoeller, 1996 - 2020, 67th Edition, 22 Nov 2020

Pirna (Junkers) 020

ZTL Bypass engine, 3700kp

Pirna 020/B

The Pirna 020 was under development since 1960. It was a ZTL engine with 3700kp and was finally intended for all 1960 GDR passenger airliner designs like the Baade 152, the Baade 155 and the Baade 154. This engine was a completely new Approach for the Pirna Team with its Bypass airflow and the two shafts for high and low pressure stages.

In 1960 at least the three stage low pressure compressor and the high pressure compressor were built for compressor testcell runs. No complete engine was assembled until the General stop for the GDR aviaton industry in 1961, when also the Pirna 020 development was stopped.


Technical Data:

Engine Designator year Compressor Burner Turbines length
in m
max diameter
in m
in kg
Max. Power
in kp
Pirna 020 1959 6LPC+8HPC 8 1HPT+2LPT 3,56
950 3700 13000





  • Klaus Mewes
    Pirna 014 - Flugtriebwerke der DDR
    Aviatic Verlag, 1997, ISBN 978-3925505393




introduced Aug 2017
contents last updated 30 Aug 2017