Advanced Engine Suite II (AES II) is a multi-functional management box suitable for application in airplanes equipped with engines.
 
Through the VBAT (XT30/PWR) power port, users can use the same battery to power all connected devices, eliminating the trouble of providing an independent power supply for the ignition control unit. AES also adopts a safety solution to avoid potential risks caused by interference between the connected ignition and receiver devices.
 
The AES module is equipped with a wealth of sensor interfaces, including 2 sets of 2 RPM sensor ports, 1 flowmeter sensor port, and 7 temperature (4 PT100 type & 3 TEMS Type) sensor ports. In addition, AES also provides 2 AD ports, allowing users to flexibly use different types of AD devices required in your airplane. At the same time, through the FBUS/S.Port feature of the connected receiver, users can monitor the telemetry data in real-time on the transmitter to know the aircraft’s operating status.
 
 
 
 
Why We Recommend This
The AES II is the definitive telemetry solution for gas-powered RC aircraft — monitoring RPM, engine temperature, fuel flow, and exhaust gas temperature all from one module, displayed live on your FrSky radio. If you fly gas turbines or large gas planes, this is the suite that closes the information gap between you and your engine. FPV Builds RC provides U.S.-based product support and setup guidance for FrSky products purchased through our store.
Frequently Asked Questions:
 
What aircraft and engine types is the AES II designed for?
The Advanced Engine Suite II (AES II) is a multi-function engine management and telemetry hub for RC aircraft powered by gas engines, turbine jets, or other combustion engines. It centralizes ignition control, kill switch, engine temperature monitoring, and RPM telemetry in one compact box — making it the go-to solution for large-scale gas warbirds, turbine jets, and twin-engine models that need reliable engine management and live engine data on your transmitter.
 
What is the difference between the AES and the AES II?
The AES II is the second-generation Advanced Engine Suite with expanded sensor port capabilities compared to the original AES. The AES II includes additional sensor interfaces and support for more engine monitoring channels, making it better suited to complex multi-engine or turbine installations. If you're setting up a single-engine gas model, the original AES may be sufficient. If you need more sensor ports or are running a turbine or dual-engine setup, the AES II is the recommended choice.
 
Which FrSky receivers is the AES II compatible with?
The AES II connects to FrSky receivers via FBUS or S.Port, making it intended for compatible FrSky receiver telemetry connections; verify the receiver port, protocol, firmware, and sensor wiring before purchase. FBUS is preferred for current builds. Browse compatible receivers at https://www.fpvbuildsrc.com/frsky-receivers.
 
How do the sensor ports on the AES II work?
The AES II features a VBAT (XT30/PWR) power input port and multiple sensor ports for connecting temperature sensors, RPM sensors, and external kill switch inputs. Sensor data from each port is aggregated and transmitted as telemetry to your FrSky radio, where it appears as named telemetry fields in ETHOS. This gives you a single-cable telemetry connection from your engine bay to your receiver instead of running individual sensor wires.
 
What telemetry data does the AES II provide in ETHOS?
On a Tandem X18 or X20 series transmitter running ETHOS, the AES II streams engine-specific telemetry including RPM, temperature readings from connected sensors, battery voltage, and engine state. You can display these on your home screen, set audio alerts for overtemperature or RPM limits, and use them to monitor engine health throughout a flight without looking away from the aircraft.
 
Does the AES II work with FrSky ADV telemetry sensors?
Yes. The AES II can work alongside FrSky ADV sensors on the same FBUS network. You can combine the AES II for engine telemetry with a FAS current sensor and GPS ADV on the same receiver's FBUS port, building a comprehensive telemetry suite for a gas or turbine aircraft. Browse the full sensor lineup at https://www.fpvbuildsrc.com/frsky-sensors.
 
Does FPV Builds RC offer setup support for the AES II?
Yes. FPV Builds RC is a U.S.-based FrSky dealer and our team has experience with engine telemetry wiring and ETHOS configuration for gas and turbine aircraft. Contact us via the site for guidance on AES II installation in your specific airframe.