RCU Forums - View Single Post - Twin setup information
View Single Post
Old 03-03-2025 | 05:02 PM
  #1  
acw
My Feedback: (1)
 
Joined: Jan 2007
Posts: 700
Received 31 Likes on 23 Posts
From: Spokane WA
Default Twin setup information

Kingtech turbines support twin setup with telemetry, however, these setups aren’t very well documented. I just setup my first twin and thought I’d share what I learned during this process.

Engine orientation
With twins, it is important to make sure that RPM sensors don’t interfere with each other. For this reason, kingtech turbines have a small symbol showing where the sensor is. In my installation both sensors are on the same side but not facing each other. I verified that there were no rpm fluctuations on one engine as reported by the telemetry while operating the other engine.

Radio setup
I have a jeti radio. I have 2 kill switches. One for the left engine and one for the right engine. They have 3 positions which are (off, idle, running). The off position forces the channel to -100%. The idle position forces the channel to -75% (aka trim low) and the running position simply mixes the throttle stick into the channel from -75 to +100%. With this setup I’m able to start either engine, run it and then if I want to start the other engine, I move the switch to idle and start the 2nd engine without affecting the other one.

Failsafe
Obviously you need to setup a failsafe on both channels

Telemetry
Kingtech offers a telemetry unit that connects to the GSU port of the ECU. Kingtech also has a “twin” option in the radio setup which isn’t documented. When the twin option is enabled, both turbines feed into the same telemetry box. One connects to the normal ECU port, just like in single engine operation. The other ECU connects where the GSU connects. In the telemetry, some new values become available for the 2nd turbine ex RPM2, EGT2, etc…

So basically, setup both ECU in “twin” mode and connect both ECU to the telemetry unit and the telemetry to your receiver.

There is no fuel consumption reported for the 2nd engine. However, when in twin mode, it appears the reported consumption is for both engines together. So set your fuel tank to the sum of both tanks (if you are using 2 tanks).

With this setup, you will note that you can no longer connect the GSU since the 2nd ECU is connected. I used Y connectors to connect both GSUs. This works fine, however, if you want to access the telemetry setup, you need to disconnect the 2nd turbine and connect the GSU to the telemetry unit or the GSU directly.

Thanks to RPM and RPM2 telemetry I was able to setup voice alerts if one of the engine flames out.

I hope this information is helpful to anyone trying to setup a twin kingtech.

Last edited by acw; 03-03-2025 at 06:47 PM.