Perimeter 8

The easiest, safest and longest endurance hybrid drone.

The Skyfront Perimeter 8 and 8+ hybrid drones can carry up to 10 kg (22 lb.) for up to one hour and 5 kg (11 lb.) for 2-3 hours. The combination of heavy-lift and high-endurance reduces field time from days to hours.

  • 5+

    / hours

    Flight endurance

  • 60 mi

    / 100 km*

    Video and control range

  • < 5

    / minutes

    Setup time

  • 22 lb.

    / 10 kg

    Payload capacity

* Available only on certain sub-models.

Fuel injected for high reliability and ease of use.

Setup any payload
Our fuel injected engines provide unprecedented reliability.
No wasting time on engine tuning.

1 / hour

22 lb. / 10 kg

5 / hours



Built for ease of use, assembly and transport.

Engine autostart

Engine is automatically started and stopped. No pull starts or cumbersome drill starter motors.

Quick deployment

The Perimeter can be unboxed, assembled and flown in less than 5 minutes.

Modular payload bay

Accommodate payloads more than 11 lb. (5 kg) with form factors ranging from LiDAR units, visual and thermal cameras and more.

Engine integration

Engine operation is fully automated, from start to finish. Just refuel and fly like a regular multirotor.

Full engine telemetry

Engine health information is made available on the ground station. The engine can be started and stopped through the ground station.

Extremely lightweight

The Perimeter is 20% lighter than any hybrid-electric multirotor on the market today.

Airline Transportable

The UAS is small enough to be transported on an airliner, saving tens of thousands on shipping costs.

Digital fuel level indicator

Fuel levels are visible on the ground station.

Airframe case

Arms case

Antenna case


Leading the market in payload, endurance and range.

PerformancePerimeter 8+Perimeter 8

Max. Endurance *

5+ hours @ no payload 3 hours @ 11 lb. (5 kg) 2 hours @ 17 lb. (7.5 kg) 1 hours @ 22 lb. (10 kg)

5 hours @ no payload 3 hours @ 8.8 lb. (4 kg) 2 hours @ 11 lb. (5 kg) 1 hours @ 17 lb. (7.5 kg)

Max. Payload Capacity

22 lb. (10 kg) for 1 hour (MTOW will exceed 25 kg)

17 lb. (7.5 kg) for 1 hour)

Max. Range

134 miles (216 km)

110 miles (177 km)

Max. Temperature

122°F (50°C) with high-heat upgrade. 113°F (45°C) without.

113°F (45°C)

Max. Density Altitude

13,000 ft (4,000 m)

9,000 ft (2,700 m)

Abs. Max. Speed

44 mph (70 km/hr)

36 mph (57 km/hr)

Cruise Ground Speed

22 mph (35 km/hr)

22 mph (35 km/hr)

Max. Tested Wind Speed

25 mph+ (35 km/hr)

25 mph+ (35 km/hr)

Min. Temperature

15°F (-10°C)

15°F (-10°C)


Tip-to-Tip length

Arms removed: 2 feet x 2.66 feet (0.6 m x 0.81 m) Ready to fly: 6.5 feet x 6.25 feet (2 m x 1.9 m)

Minimum Height

14.5” (0.37 m)


Customizable to fit payload

Maximum Takeoff Weight

57 lb. (26 kg)

51 lb. (23 kg)


Radio Frequency

Configurable. 433 MHz to 5.8 GHz. Contact us.

Maximum Telemetry

6.2 miles (10 km) up to 62 miles (100 km)

Supported Radios

Silvus Technologies, Doodle Labs, Persistent Systems, RFD.


AES128 or AES256.

Electronics, software and firmware

Autopilot Firmware

Proprietary. Pixhawk/PX4-based.

Engine Control Firmware andElectronics

6.2 miles (10 km) up to 62 miles (100 km)

Flight Modes

• Altitude Hold • Loiter, Position • Mission, by default • Configurable

Ground Control Software

Skyfront Ground Control Station™(SkyfrontGCS). Proprietary. QGroundControl-based with engine telemetry and control.

Ground Control Station Hardware

Windows 10 Laptop OR Ruggedized Windows 10 Computer

Power System

Power Source

Proroprietary hybrid gasoline-electric propulsion system

Fuel Delivery

Electronic Fuel Injection

Electrical Conversion

> 95%

Battery Flight Time

3-5 minutes. Can increase by request

Battery Type

Lithium Polymer

Gasoline/Petrol Type

91 Octane or above

* Flight times were measured at MSL 0’ in 50-75°F temperatures. Actual flight times depend on temperature, altitude,wind and other environmental conditions.

** Tested operating conditions. Actual range may be greater.

Specifications are subject to change without notice.


GPS Jamming Defense and Data Link Anti-Jamming

Operate in GNSS/GPS and communication denied areas. Fly in areas with active jamming.

Hot Weather Operation

Options to operate in the hottest environments up to 50C.

Command/Control Handoff

Take control and view video from any ground station.

Navigational RTK GNSS

Centimeter precise RTK GNSS for navigation and geotagging.

Active Terrain Following

Accurate control over altitude above ground level using active RADAR altimeter.

Battery-only flight time

Long reserve battery-only flight time.


Ground station computer, case and more.

Patent markings

  • Flight controller for a series-hybrid multirotor aircraft – March 25, 2015 – Provisional application No. 62/137 ,915

  • Flight controller with generator control – December 4, 2018 – 10, 144, 527

  • Flight controller with generator control – February 21, 2019 – 2019 / 0055029


  • How does the Perimeter 8 get such long flight times?

    The Perimeter 8 is powered by an internal combustion two stroke engine that spins a generator. The high energy density of gasoline and the weight and efficiency of the Perimeter 8 design lead to long flight times.

  • Is the Perimeter 8 powered by gasoline/petrol?

    Yes, there is a two stroke internal combustion engine which supplies power to the drone’s electric motors.

  • What is a hybrid drone?

    A hybrid drone is a multirotor drone that is powered by a hybrid-electric power source. This hybrid-electric power source converts gasoline/petrol into electricity, which is then distributed to the propellers in motors. The drone can fly for much longer than a battery powered drone because gasoline has a much higher energy density than that of batteries.

  • How much does the Perimeter 8 cost?

    Prices start at $46,800

  • Which cameras does the Perimeter 8 come with?

    Available cameras are shown in the Payloads section.