Electronics and Sensors Archives - HFE International https://hfe.aero/category/accessories/electronics-and-sensors Mon, 17 Feb 2025 22:51:00 +0000 en-US hourly 1 https://hfe.aero/wp-content/uploads/2014/03/cropped-contact-32x32.jpg Electronics and Sensors Archives - HFE International https://hfe.aero/category/accessories/electronics-and-sensors 32 32 18 Pin Harness https://hfe.aero/shop/accessories/electronics-and-sensors/avionics-harness/ Fri, 26 Feb 2016 18:13:59 +0000 http://www.hfe.aero/?post_type=product&p=922 This harness provides power to the fuel pump and receives the throttle position input from the aircraft receiver (channel 3) or a pulse width modulated input ranging from 900 to 2100 µs. 

The wires are protected with high resistant PTFE jacketing and additional fiberglass sleeving, creating a tough harness that can handle the vibration and harsh environment of flight.

Outputs include battery, kill/enable, servo in, fuel pump, and tach out.

An un-terminated battery connection is provided for system power (10 to 15V 2000 mAh battery or greater)

See engine operators manual for harness pin designations.

Features

  • High temperature 300°F , abrasion resistant Teflon insulated wire
  • High temperature 1,200°F fiberglass insulating sleeve
  • Weight: 60 g
  • Designed for EFI UAV engines. For Mil Spec UAV engines, please use engine order form
]]> 250 W Power Management Unit https://hfe.aero/shop/accessories/electronics-and-sensors/250-w-power-management-unit/ Fri, 29 Jul 2016 00:02:41 +0000 http://www.hfe.aero/?post_type=product&p=1194 This product may have a long lead time. Please contact HFE International prior to placing an order.]]>

The 250W Power Management Unit (PMU) provides on-board electrical power generation, battery management and power distribution for small to medium-sized UAVs.

If you have an alternator on your gas engine, connect it to this PMU for stable DC power and to keep the battery charged. If your alternator is not producing power, this unit supplies the aircraft with power from the connected battery.

250 W Power Management Unit Features

  • Multiple independent, individually programmable power outputs:
    • Avionics: 12 – 21 VDC, 7.5 Amps (120W max)
    • Payload: 12 – 21 VDC, 7.5 Amps (120W max)
    • Servo: 5 – 12 VDC, 10 Amps (120W max)
  • Outputs are battery-backed and switchable (on/off) via hardware signal or remotely via command.
  • Dual (redundant) battery support. The PMU includes two independent and identical battery chargers. Supported battery types include
    • LiPo: 5S, 6S
    • LiS: 7S, 8S, 9S, 10S
    • LiFe: 5S, 6S, 7S
  • Industry-standard 28 VDC output (available during power generation and when the PMU is connected to umbilical power).
  • RS232 and CAN control and monitoring interface provides extensive monitoring and reporting of voltages, currents, battery charge status, temperature.
  • Weight: 290g (10.2 oz)
  • Dimensions: 124.4 x 85.0 x 32.5mm

PMU Product Brief

PMU Manual

About Millswood Engineering

Millswood Engineering is a small electrical & electronic engineering company located in Adelaide, South Australia.

Their mission is to make innovative and meticulously engineered products, principally for the Unmanned Aircraft System (UAS) market. To date they have focused their efforts on UAV power and safety systems. All Millswood Engineering products are designed and tested in Australia.

]]> 27 Pin Wire Harness https://hfe.aero/shop/accessories/electronics-and-sensors/27-pin-wire-harness/ Wed, 22 Dec 2021 20:56:40 +0000 https://hfe.aero/?post_type=product&p=3372

This is the main wire harness that provides power to the throttle body assembly, ignition, crank sensor, and the cylinder head temperature (CHT) sensor.  The harness also provides sensor feedback to the ECU for engine operation.

The wires are protected with high resistant PTFE and ETFE jacketing and additional fiberglass sleeving, creating a tough harness that can handle the vibration and harsh environment of flight.

Features

  • High temperature (300°F) abrasion resistant Teflon insulated wire
  • High temperature (1,200°F) fiberglass insulating sleeve

Weight: 88g

About HFE International

Founded in 2010, HFE International develops and manufactures high-end propulsion systems for UAVs, unmanned systems and ground support equipment. At a cost 25% less than the closest competitor, HFE meets the demand for small, reliable engines at an affordable price.

Over 1,000 HFE engines are in operation throughout the world — including use by the US Armed Forces. HFE propulsion systems include fuel-injection and rotary for gasoline and multi/heavy fuel operation.

]]> CHT Sensor https://hfe.aero/shop/accessories/electronics-and-sensors/cht-sensor/ Wed, 03 Feb 2016 18:06:55 +0000 http://www.hfe.aero/?post_type=product&p=913 This sensor is mounted to the top right cylinder on the engine and monitors engine temperature.  The engine temperature data is fed back to the engine control module (ECM).  The ECM changes the fuel mixture based on engine temperature.

The cylinder head temperature sensor bracket (HFE0718) must be used to prevent sensor failure and provide strain relief for the sensor wires.

  • Temperature range -20 °F to 350 °F
  • Mounting Screw Size: 6-32 x 3/16
  • Weight: 0.25 oz
]]> Crank Sensor https://hfe.aero/shop/accessories/electronics-and-sensors/crank-sensor/ Wed, 22 Dec 2021 21:28:15 +0000 https://hfe.aero/?post_type=product&p=3273

Replacement crank sensor 5V system.

NOTE: Needs to be in the exact same position. For field repair, mark crank position before replacing.

 

About HFE International

Founded in 2010, HFE International develops and manufactures high-end propulsion systems for UAVs, unmanned systems and ground support equipment. At a cost 25% less than the closest competitor, HFE meets the demand for small, reliable engines at an affordable price.

Over 1,000 HFE engines are in operation throughout the world — including use by the US Armed Forces. HFE propulsion systems include fuel-injection and rotary for gasoline and multi/heavy fuel operation.

 

]]> ECM to Engine Harness https://hfe.aero/shop/accessories/electronics-and-sensors/ecm-to-engine-harness/ Fri, 26 Feb 2016 18:28:06 +0000 http://www.hfe.aero/?post_type=product&p=920 This is the main wire harness that provides power to the throttle body assembly, the ignition, the crank sensor, and the cylinder head temperature sensor.  The harness also provides sensor feedback to the ECU for engine operation. The wires are protected with high resistant PTFE and ETFE jacketing and additional fiberglass sleeving, creating a tough harness that can handle the vibration and harsh environment of flight.

Features

  • High temperature 300°F , abrasion resistant Teflon insulated wire
  • High temperature 1,200°F fiberglass insulating sleeve
  • 26 inches long
  • Weight: 2.375 oz
]]> Ignition https://hfe.aero/shop/accessories/electronics-and-sensors/ignition/ Wed, 22 Dec 2021 21:36:37 +0000 https://hfe.aero/?post_type=product&p=3275

Replacement ignition for 5V system.

 

About HFE International

Founded in 2010, HFE International develops and manufactures high-end propulsion systems for UAVs, unmanned systems and ground support equipment. At a cost 25% less than the closest competitor, HFE meets the demand for small, reliable engines at an affordable price.

Over 1,000 HFE engines are in operation throughout the world — including use by the US Armed Forces. HFE propulsion systems include fuel-injection and rotary for gasoline and multi/heavy fuel operation.

 

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