ENSTROJ - electric motor innovation

phone: 00386 82053850 
e-mail: info@emrax.com
skype: enstroj
ENSTROJ d.o.o
Pod hribom 4
SI - 1235 Radomlje
Slovenia

Electric Apis - only for testing EMRAX motors (not for selling)

EMRAX motor has been tested several times on glider planes – Electric Apis EA1 and EA2

EMRAX motor has been tested several times on glider planes – Electric Apis EA1 and EA2. Electric Apis EA1 is one of the first electric sailplanes in the world and the first one in Slovenia EU (the first flight was 18. April 2005). It can take off with an electromotor and climb up to altitude 1800 m at 50%DOD, even to altitude 3000 m at 90%DOD. The altitude depends on the percentage of the discharging of the Li-Poly batteries. The best recommended discharging of the batteries is about 50%DOD. In this case the altitude is app 1800m and the batteries can give 1500 cycles. More info here: http://kokam.com/english/product/kokam_Lipo_01.html

We developed EMRAX electric motor because there was no suitable electric motor for directly driving the propeller in the world market. The high powered - BLDC electric motor EMRAX 30 kW continuous power is reliable for each altitude. It operates with minimum noise and gives high power and excellent torque at low RPM (direct drive prop) for best climbing up to 6,0 m/s.

In the future solar cells on the wings will give enough nature energy for many take offs and the plane will climb much over 3000 m of the altitude. (Sunseeker Duo)

AMS flight used to produce APIS sail planes in many versions. The company PIPISTREL is now a new owner of APIS gliders project now. More info here: http://www.pipistrel.si/planes/721

In 2004 we got kit version of Apis EA1. Besides developing an electric propulsion system, we also change the canopy design, made more effective inner ventilation, developed the retractable wheel with shock-absorber and many new designs for electric power system. The retractable wheel improves L/D = 41:1 and it also visually improves the stream line of the plane. The doors on the body are closed when the motor with the propeller is outside or inside of the fuselage. The electric system does not produce noise, it is clean, safe, reliable and virtually maintenance free. We are in favor to make reliable innovations, which are the most important for comfortable in enjoyable flying.

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Technical data and performance of glider plane Electric Apis EA2

Technical data and performance of glider plane Apis EA2 using brushless electric motor named EMRAX:

Electric Apis EA2 – Technical data and performance
Electric motor aircooled EMRAX
Electric motor weight 10,5 kg (light version - tailor made for EA2)
Controller DC/AC SAC41 (aircooled, Piktronik)
Engine peak power (2min) 40 kW - 54 hp at 200 V DC / 1800 RPM
Torque continuous/peak 120 Nm / 200 Nm
Engine speed EA2 1800 RPM at 200 V DC (direct prop drive)
Propeller diameter EA2 1,8 m
Static prop thrust (prop dia 1,8 m) 1500 N
Batteries Li-poly - power capacity 8,0 KWh
Capacity current 40 Ah
Voltage DC (no load) 230 V
Batteries weight 55 kg
Charging time - depends of DOD 4 - 6 hours / 230V
Take off distance on grass/time 70 m (7 seconds)
Take off distance on asphalt/time 50 m (5 seconds)
Max climb rate 6,0 m/s
Max altitude 50%/90% discharging 1600 m/3000 m
Best glide 41 : 1 at 95 km/h
Empty weight 280 kg
Max take off mass 370 kg
Max horizontal flight distance 200 km
 

Battery packages for electric Apis - for more informations here.

Videos – EMRAX electric motor on Apis EA1

NEW Video: APIS EA2 take off in Lesce - 12th of May 2013

Noise in the background is from another airplane (seen in the end of the video).

Video: Take off and retracting the propeller in to the fuselage EA1

In 90 seconds climbs up to 350m - included take off. Temperature on copper EMRAX prototype 30kW (41HP) air cooling motor windings was only 70°C. Max altitude is 3000m at one charging the batteries. (Year 2009)

Video: Take off on asphalt running way

Video: Take off Ferlach, Austria

Video: Take off, low pass, landing

 

 

Videos

EMRAX motor in Audi / Volkswagen transmission gearEMRAX motor in Audi / Volkswagen transmission gearWe are working on the electric Audi TT project.
Take off Apis EA2 - Kamnik 21.7.2013Take off Apis EA2 - Kamnik 21.7.2013Electric self launch glider plane Apis EA2 with EMRAX motor and EPROP.
Apis EA2 take off, low pass, landing in Lesce - 12th of May 2013Apis EA2 take off, low pass, landing in Lesce - 12th of May 2013Self launch electric glider plane Apis EA2 with EMRAX motor and EPROP.


The Ohio State University's CURRENT Electric Motorcycle TestThe Ohio State University's CURRENT Electric Motorcycle TestThe OSU Electric Motorcycle Team, CURRENT, tests their bike for the first time.

The lightest and the most powerfull electric motor in the world