PRO
Turbine Engines
The PRO series engines are now the base Jakadofsky turbines that we offer. This turbine has been designed from
development efforts and responding to customer feedback. The PRO and PRO5000 turbine gives modelers enough
flexibility for use in scale and aerobatic models and has been our most successful turbine. Modelers planning
to install a PRO turbine in a custom mechanics should contact us to ensure your PRO turbine is configurated
for your application.
PRO-SW Turboshaft Turbine w/Machined Turbine Wheel $5,650.00
PRO5000 Turboshaft Turbine w/Machined Turbine Wheel $6,136.00
The Jakadofsky turbine is an AMA approved engine for use within North America. This
is a complete system that comes with the components for complete remote starting, operation and shutdown
from the radio transmitter. The onboard electronic control system automates the complete control of these
processes on the engine. Two different types of fuel are used during operation, a gaseous butane/propane
mix for starting and liquid Kerosene as the primary operational fuel. The engine is first started with
the propane/butane that burns until the engine is at a sufficient temperature and RPM to run on the liquid
Kerosene. After transitioning to the Kerosene, the butane fuel value is automatically turned off.
The Jakadofsky engine operates more efficiently as the AECU (electronic control unit)
only needs to regulate the engine speed 2-4K to cover all flying manuevers. This intrinsic design avoids
large engine RPM changes to control the output to the helicopter. The engine also comes equipped with an
intake screen to avoid FOD (foreign object damage) that prevents debris from entering the engine which
could severely damage the internal engine components. All around, the Jakadofsky turbine engine is a
better design for the emerging turbine helicopter marketplace and several helicopter companies, in
addition to ourselves now offer mechanics designed for the Jakadofsky turbine for use with their
helicopters.
Common Specifications:
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| Startup: | Completely automatic ECU engine start and shut down from transmitter. |
| Fuel Useage: | 4 oz/min (130ml/min) average. |
| Fuel: | Jet A-1 Kerosene with 5% Turbine Oil. |
| Gas: | 30% Propane / 70% Butane mix in a refillable tank. |
| Glow Plug: | Rossi 4 with 2 loops expanded 3mm, no gasket. |
| Exhaust Temp: | 400° - 700° Celcius. |
| Battery: | 7.2V 1250Mah (for onboard starting). |
| |
| Tubing: | Gas system 3mm PU |
| | Fuel pressure system 4mm PU |
| | Fuel pickup and tank system, yellow Tygon 3mm inside |
| | Fuel tank fittings 3mm inside diameter |
| |
| Diameter: | 113mm |
| Length: | 260mm |
| Weight: | 1350g (3 lbs) |
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| Note: Oil used in all engines (old and new) is recommended to use ONLY 5% Turbine oil.
In the beginning Jakadofsky was cautious and suggested 7%, however after several years of testing, they now
only recommend using 5%. |
| |
Technical Dimensions:
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We have been asked several times for the key dimensions on the Jakadofsky turbine engine and Jakadofsky has provided the
following two technical drawings with dimensions in millimeters. These are exact and can be easily used to determine how a
Jakadofsky turbine can be installed in your model project.
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