SIERRA. Specifications. A photo.


SIERRA. Specifications. A photo.

SIERRA. Specifications. A photo.


SIERRA - American multi-purpose unmanned aerial vehicle developed by the US Navy's scientific experts in 2009 year.

Unmanned aerial vehicle model SIERRA (Systems Integration Evaluation Remote Research Aircraft) was developed by American specialists in the field of aerospace technologies and systems in the mid-2000s. The new device was intended primarily for research purposes by the US National Aerospace Agency, however, the project was also interesting from the point of view of military applications.

American drone SIERRA can be used as an air reconnaissance means used to carry out patrol and observation flights, used for special missions, and others. At the moment, the drone is used exclusively for research purposes and as a means of mass-produced is not available.

The first flight tests of an unmanned aerial vehicle SIERRA model were made by US experts in 2009 year, and due to the fact that the device has successfully passed all the required tests, the project was further developed.

UAVs SIERRA has a fairly compact size - at its length in meters 3 61 centimeter, the drone has a wingspan equal to 6 10 meters centimeters, which enables the system a good lifting power, providing, among other things, also quite long duration autonomous flight.

Powerplant SIERRA air means is represented by one rotary engine that allows drone to reach a maximum speed of movement in 148 km \ h., While the maximum flight range of this device is 966 kilometers.


Specifications SIERRA.


  • Length: 3,61 m .;
  • Wingspan: 6,1 m .;
  • Height: 1,4 m .;
  • Maximum takeoff weight: 205 kg .;
  • Cruising flight speed: 120 km \ h .;
  • Maximum flight speed: 148 km \ h .;
  • Maximum flight distance: 966 km .;
  • Maximum flight height: 3700 m .;
  • aircraft engine type: rotative;
  • Powerplant: unknown;
  • Power: unknown.



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