PRO-X
Turbine Engine
The PRO-X turbine includes the ProECU turbine controller which has significantly improved
turbine safety through improved software and standardization of how the ProECU is configured and connected
to your receiver. All turbine operation is now controlled from a single switched channel on your transmitter
focusing regular operation and emergency shutdown from the same switch.
Jakadofsky PRO-X Turboshaft Turbine Engine $11,980.00 
The turbine engine is started and automatically spooled up to an operating RPM with the
helicopter's blade pitch in neutral. Once the operating RPM is achieved the turbine will signal the pilot using
the auxillary LED and the pilot can lift the helicopter off the ground. Once in the air, the turbine speed remains
very constant reacting only to the largest changes in pitch. The turbine's fundamental operation guarantees a
constant rotor-head speed which can be fine tuned in the ProECU.
ProECU Setup: Receiver Connections for Jakadofsky PRO-X Edition Turbine
The following table shows the most common receiver configuration for turbine models. Depending on
your transmitter, channel 7 or 8 normally has a 3 position switch which is the preferred choice, but a dial or
slider is equally suitable.
| Channel | Function | Useage |
| 1 or 4 | Throttle | Unused |
| | Aileron | Normal |
| | Elevator | Normal |
| | Rudder | Normal |
| 5 | Gear Switch | Normal |
| 6 | Collective Pitch | Normal |
| 7 | Auxillary 2-3P Switch | Gyro Remote Gain |
| 8 | Auxillary 3P Switch/Dial/Slider | Turbine Control |
| Table 1. Auxillary channel for turbine control. |
Depending on your transmitter, you may have a choice for the turbine control switch. It is no longer
possible to use a two position (2P) switch here. The ProECU reads the three position (3P) switch as Off, Idle and
Max operating speed. While we do not actively change the turbine RPM during flight in helicopters, occassionally the
model is flown at a location that has a different altitude or humidity that affects the engine and its operational RPM
can be adjusted. Many factors contribute to what that flying speed should be including fixed elements like the model
weight and rotor blade type to variable elements like the air temperature and humidity which change day to day.
Turbine Autostart Procedure - PRO-X
| Step | Console | Event | Auxillary LED |
| 1. Begin | stop | | |
| 2. Turbine Switch: OFF -> IDLE | run | | solid on |
| 3. Cycle Turbine Switch: IDLE -> MAX -> IDLE |
| | rel- | system release for startup | solid on |
| | fire | igniter lights | solid on |
| | spin | turbine rotor is spinning | solid on |
| | fire | fuel pump & start valve on | solid on |
| | heat | short chamber heat up | solid on |
| | acce | fuel valve on, accelerating | flashing |
| | idle | turbine idle | solid on |
| 4. Set Collective Pitch to neutral (0 degrees) |
| 5. Set Turbine Switch: MAX |
| | 0%++ | increasing turbine power | solid on |
| | 100% | achieved maximum power | turns off |
| 6. Add collective pitch to take off. |
| Table 2. Turbine Autostart Procedure - Kerosene Start Fuel |
The turbine switch is the only way to start or stop your Jakadofsky turbine engine and
can be used at any operating speed. The engine will automatically follow the next procedure during shutdown to
ensure the engine cools off to a temperature below 80 degrees to avoid damaging internal components.
Turbine Autostop Procedure - PRO-X
| Step | Console | Event | Auxillary LED |
| 1. Land Helicopter |
| 2. Turbine Switch: MAX -> IDLE |
| | 100%- - | decreasing turbine power | solid on |
| | idle | turbine at idle | solid on |
| 3. Turbine Switch: OFF | off | fuel valve closing | turns off |
| | off | engine cycles during cooling | off |
| | cool | engine below 80 degrees | off |
| 4. Reconnect the data console to retrieve flight statistics. |
| Table 3. Turbine Autostop Procedure |
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