has been in the aviation business since 1985. Among thousands of hours
piloting Turbine Aircraft we are doing
maintenance, repairs and inspections of full scale helicopters
like the Alouette, Lama and Gazelle.
As of 1996 Jakadofsky
has been producing smaller jet engines for UAVs and R/C models
and in 2000 we developed a turboshaft version that integrates a small
gearbox inside the engine. The gearbox is completely maintenance-free
providing the most reliable direct drive for small helicopters. The introduction
of turbine power to UAVs and R/C models is a breakthrough in reliability
and power available. A patent was granted for this turbine
engine and its entire system in 2002.
is specialised in fast prototyping and producing turbine
wheels. Using latest 5-axis HSC technologies,
we are able to mill one piece turbine and compressor wheels from exotic
materials like aircraft aluminum, titan and high temperature super-alloy.
Tel +43 2252 890038
Fax +43 2252 890038 15
"PRO 5000" Turboshaft Engine
PRO 5000 is our new high performance engine developed for the phantastic
Vario Alouette III with 2,5 m rotor diameter, as well as for other even
larger 3 m scale models.
The healthy and dependable Jakadofsky product line is topped by this even
more powerful turboshaft engine. Besides new internal modifications, comes
the PRO 5000 engine standard equipped with our 5-axis HSC milled Nimonic
turbine wheel and the increased rated rpm of 98.000 rpm are resulting
in 5,1 kW rated power output. Low residual thrust and a very decent fuel
consumption of just 175 ml/min are convincing. Dont get fooled by ads
from some of our competitors claiming fictive higher power ratings and
low fuel consumtions, that are never reached in realty. As serious engine
manufacturer serving the aviation industry for more than a decade, we
guarantee that the power and proven single turboshaft reliabilty of this
engine will convince you, day in, day out. And dont forget the internal
gearbox lifetime warranty. The Jakadofsky GmbH is setting the unmatched
PRO EDITION engines can be ordered with a milled 5-axis HSC Nimonic turbine
Advantages over cast wheels are:
Even more power, running smoothness and reliability!
For further information click RC-Turboshaft.
The Turboprop Unit TP 24 is being delivered with the PRO EDITION turboshaft
engine and a variable pitch CFK propeller of 24 inches diameter.
One servo adjusts pitch from -4 to +13 inches at constant prop rpm.
A serious "constant speed drive" without any delay. Pitch and
thrust changes are performed as fast as the servo is!
The turboprop units feature outstanding workmanship made of high strength
aluminum. Mounting brackets are included and allow quick and easy installation
into your favourite plane.
Comes with variable pitch prop and spinner (either 100 or 115 mm dia).
Turboprop unit TP 24
Specs (in combination with Pro Edition)
up to 120 inches / 40 lbs max
SPECIFICATIONS - GEARBOX INFORMATION
All turbines series RS and PRO are equipped with an integrated metal
gearbox. This gearbox is designed as two stage unit, permanently lubricated
and cooled by the Kerosene/oil mixture. An outstanding feature of this
gearbox is the capability of handling the rigors of 3-D flying as well
as being extremely reliable for scale models.
Power is taken off the mainshaft directly between the main bearings.
No vibration, no resonance, no hassle with unreliable belts. And the good
thing is: The gearbox is maintenance free and carries a lifetime warranty.
The gearbox handles even sudden rotor stoppage without damage as being
protected by an permanently installed flyweight / clutch unit.
Development of this system took 2 years and was very cost intensive.
But the results are outstanding. "JakadofskyJetEngines" received
patent protection on this particular turboshaft system in 2002. In the
meantime the system proved to be so reliable, that it found entrance into
industrial and military applications propelling UAVs.
Weight (without clutch):
Clutch (clockwise from front):
Consumption (Jet a + 5% oil):
Special features Version PRO:
High precision angular ball bearings, extra heavy duty gearbox, high performance
EGV, high performance turbine wheel, black anodized and engraved aluminum
The following plans are available by favour of:
Dipl.-Ing. Volker Jung / Fa. Cad u. Modelltechnik Jung, Hans-Böckler-Str.
21, D-65439 Flörsheim
Email: email@example.com / Internet: www.cad-modelltechnik-jung.de