Production program
Propeller Control Systems
Jihostroj became one of the manufacturers of propeller control systems in 1975, when the production of the propeller governor for Avia V-508 propeller began. The governor is hydro-mechanical and is mounted together with the Avia propellers onto the M-601 turboprop engine. Since that year more than 7,000 of these governors in several versions including the version for the V-510 propeller have been manufactured.
In 1998, Jihostroj introduced a new model line of advanced lightweight hydro-mechanical propeller governors. At the present time, our governors are flying in many types of airplanes, seaplanes or airships. Jihostroj produced more than 8 000 propeller governors in more than 10 main types (hydro-mechanical as well as electronic; for single acting as well as for double acting propellers; for turboprop as well as for piston engines; for reversible and non-reversible propellers – totally in almost 100 different models). Jihostroj is now involved as a propeller control system supplier in several current big General Aviation development projects, including single-lever control systems.
Airframe Fuel and Hydraulic Systems Components and Accessories.
In 1936, Jihostroj introduced the aeronautical production specifically focused on the production of minor airframe and engine instruments. These products were destined for aeroplanes or engines of AVIA, LETOV, AERO, ZLÍN, WALTER and others and also for foreign customers.
Engine, APU and GPU Fuel Systems
One of main programs of aeronautical production in Jihostroj, a. s. is fuel control system of aircraft turbine engines. This programme can be characterised by the following products:
• Jihostroj introduced the production of instruments for fuel control and oil system of auxiliary power unit SAPHIR for the L39.
• Jihostroj introduced the production of the fuel control system of the turboprop engine M 601. It is a hydro-mechanical system with electronic of limit parameters. Again, the fuel regulator and the fuel pump were developed by Jihostroj. The system is still being produced and the number of sets manufactured today is more than 7,000.
• Based on the experience with the system for the M-602 engine Jihostroj elaborated the first study of the modem fuel control system with the full authority of electronics (FADEC) for the DV-2 engine family.
• Jihostroj a.s. recently developed the advanced fuel control unit applicable for APUs and smaller turbine engines, using the technology of single stage servovalve.
• The fuel metering pump using a brushless DC motor with electronic control is under development, potential applications are APU, GPU and smaller turbine engines.
Airframe Hydraulic Systems
In the frame of new light attack aircraft program, Aero L-159, Jihostroj entered the field of airframe hydraulic systems. Based upon experiences with servo valves of its own design and manufacturing, Jihostroj developed and certified antiskid control unit and nose wheel steering unit for this military aircraft. Within the scope of development of new Czech twin turboprop utility aircraft, Jihostroj is developing the main hydraulic unit and EMV-operated distributors for hydraulic system.
Research and Development Activities
Jihostroj puts strong emphasis on research and development activities. Currently, more than 10 different development programs are performed, with concrete deliverables, used in new business programs.
R&TD Department of aerospace division has qualified and experienced staff, and it is equipped with all necessary tools for performing design works, analysis, computing, laboratory testing etc.
Jihostroj has the high volume programs of the collaboration with world’s leading aerospace companies. The collaboration is focused on design and development of the fuel and hydraulic instruments of the aircraft systems according the customer specifications and production and delivery complete aerospace products per customer documentation.
Jihostroj is also participating on integrated research projects within the EU Framework Programs, such as CESAR (Cost Effective Small Aircraft).
Joint projects with strategic aerospace partners
Jihostroj is very active in joint projects with some leading customers in the field of aeronautical engines, motion control systems etc., and is running full-scale product development according to customer’s specification up to the stage of complete product (e.g. main fuel pumps) certification.
AEROSPACE
