• TinySlideshow v1


  • TinySlideshow v1


  • TinySlideshow v1


  • TinySlideshow v1


  • TinySlideshow v1





2 August 2014


ARCA expresses its gratitude to those who donated


20.68% have been donated until now for the development of the Executor engine. ARCA expresses it's gratitude to those who donated:
Narcis Erhan
Stefan Cristian Stanel
Nicolae Surdu
Marin Doru Nanescu
Alex Oproiu
Virgil Optasanu
Silviu-Andrei Tomulescu
Iulian Mongescu
Lucian Mihalache
Adrian Buza
Alexandrian Negrila
Dragos Mihalache
Andrei Popescu
Bogdan-Constantin Lazanu
Mihai Mincu
Razvan Constantin

Their contribution is very important for the development of the program, for building and testing the engine and for contructing the first Romanian supersonic IAR-111 Excelsior. Toghether we're making history!


To donate click here.

28 February 2014


Air Strato first take-off and landing


On February 13, 2014, Air Strato, electrical powered unmanned aerial vehicle performed the first take-off from rough ground. The aircraft performed a short flight at 25 m altitude and then landed.

Air Strato was powered by four electrical engines. Two supplementary engines were added in order to shorten the take-off distance. Other additions ware suspensions installed on main and forward landing gear. The right landing gear suspension was damaged at touch down.

"The aircraft had only 10 percent of the batteries intended for the commercial version so we had to add ballast to simulate take-off weight. We also added two more electrical motors to increase thrust, needed on the rough ground to decrease take-off distance that, combined with the landing gear suspension, provided for a smooth taxi and take-off on rough terrain. It took less than 30 m to lift into the air at maximum thrust. Also we were impressed by the aircraft's rate of climb." - Teodor Diaconu, ARCA flight dynamics engineer.

Air Strato is a high altitude electrical powered unmanned aerial vehicle. It can reach altitudes of above 18 km and has an autonomy of 7 hours on internal batteries and 3 days using solar panels. It can carry a variable payload up to 30 kg consisting of surveillance equipment or other scientific instruments.


19 February 2014


ARCA, Air Strato UAV tests on rough ground


ARCA performed a series of tests on rough ground for the Air Strato electrical powered unmanned aerial vehicle. The aircraft was accelerated to take-off speed to verify if the landing gear is able to hold on this type of runway. We also determined the required take-off distance. Air Strato has a very low take-off speed of about 50 km/h and can use any type of runway, including concrete, grass landing strips, even improvised runways covered with mud. The powerful electrical motors propel it to take off speed in a very short distance of max. 65m. This makes the aircraft able to be operated in a variety of conditions and the low take-off and landing distance make it possible utilise any flat strip of land available.

"We started with low speeds passes and gradually increased until we reached take-off speed. The electrical engines, in spite of there sizes, are very powerful and we reached 0 to 50 km/h in only 65 m. On concrete, the take-off speed was reached in only 50m. We haven't installed wheel brakes yet so it took a while to come to a stop after engine cut-off. The runway was improvised by clearing the snow and leveling the ground a bit, but we didn't do much more. Overall we are impressed on how well the aircraft performed." said Dumitru Popescu, ARCA president.

Air Strato is a high altitude electrical powered unmanned aerial vehicle. It can reach altitudes of 18 km and has an autonomy of 7 hours on internal batteries and 3 days using solar panels. In can carry a payload of 30 kg consisting of surveillance equipment or other scientific instruments. A commercial version will be available for purchase. In Romania it will be available to private individuals and enterprises only.


10 February 2014


ARCA is developing a high performance unmanned aerial vehicle


The aircraft is named Air Strato and is part of a larger UAV family that will carry out various missions for ARCA and our partners. The first prototype is completed and is already in testing. This is the largest version having a wingspan of 16m (52 ft) and is intended for stratospheric flights up to an altitude of 18 km. The aircraft is electrically powered and has autonomy of 7 hours on internal batteries and 3 days using solar panels. It can carry a payload of 30 kg consisting of aerial photography and surveillance equipment, scientific instruments or other payloads for various tasks including additional battery pods for extended autonomy. The other versions of Air Strato have a smaller wingspan and lower flight ceiling but higher maximum speed and larger payloads.

"Our activity requires that we perform stratospheric missions for our partners and clients, and solar and helium balloons we used until now, although capable of lifting heavier payloads to higher altitudes, are more expensive and time consuming in construction, are dependent on calm weather conditions and require aerial safety zones to be established. Air Strato can fill their roles much cheaper and reliable for an extended period of time and perform additional tasks for clients such as surveillance over a fixed area, telemetry testing and scientific experiments for extended period of time or other missions. It will make our entire aerospace activity much easier and less expensive." Dumitru Popescu, ARCA, CEO.

If tests are successful ARCA is considering developing commercial versions of Air Strato and other UAV in the family.

Download the press release here


26 November 2013


The Executor 2 Rocket Engine was integrated on the test stand


ARCA completed a first integration on the test stand of the Executor 2 rocket engine, for the Haas 2B rocket.

ARCA took the decision to develop the Executor 2 rocket engine as a fast and cost effective alternative for the Haas 2B rocket.

At the beginning of 2013, when the cooperation with the European Space Agency started, it was obvious that the human resources will be stretched to the limit. Because of that ARCA decided to start the development of a rocket engine that will allow a fast development. The development of the first version of the Executor rocket engine will continue, but the neccessary resources are limited for 2013 and 2014. The long development time for this engine was considered unacceptable under the present circumstances.

The Executor 2 rocket engine is fuelled with LOX and kerosene T1 and it has a vacuum thrust of 32 tons. It has a length of 1,7 m and a diameter of 1 m. The engine's total weight is 260 kg.

Photo gallery here


7 November 2013


Executor rocket engine reinforced concrete structure was completed


Executor rocket engine reinforced concrete structure was completed.
The team will start the integration of neccessary equipment for the engine test.


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