Sigma Elitar Light Sport Aircraft

Sigma Elitar is improved modification of Sigma 4 aircraft due to shift from handicraft (single piece) production to factory (series) production.
Due to shift to series production the following changes we made in the process of the aircraft manufacturing:
- conductor and stack production;
- manufactured products are double quality controlled;
- all fiberglass parts are thermally processed in electronically controlled heating cabinet;
- due to vacuum treatment technology improvement weight of each wing planes was decreased by 12 kg;
- landing gear manufacturing technology change allowed to improve take off and landing characteristics, and decrease landing gear leg weight by 2.8 kg, and also absorb landing shock;
- all vital components laboratory testing for conformity;
- standards table reduction due to technological processes specification from 3800 to 910 items;
- parts interchangeability due to conduct and stack production assembling;
- connection through bushings with class openings of all wearing surfaces, allowing to increase flight life of the aircraft.
DIMENSIONS
Wing span 9.8 m 32.15 ft
Length 5.96 m 19.55 ft
Height 2.92 m 9.58 ft
PILOT’S COCKPIT
Length 4.84 m 15.87 ft
Width 1.22 m 4 ft
Height 1.25 m 4.10 ft
Number of seats 2 pers.
AIRSPEED
Maximum permissible operating flight speed 240 km/h 149 mph
Maximum cruising speed 210 km/h 130 mph
Maximum maneuvering speed 170 km/h 105 mph
MAXIMUM PERMISSIBLE WIND SPEED
AND WEATHER MINIMUM
Head wind during takeoff and landing 10 m/s 22 mph
Tail wind during takeoff and landing 5 m/s 11 mph
Cross-wind component at right angle to runway
5 m/s 11 mph
Cloud ceiling, at least 150 m 492 ft
Horizontal visibility, at least 3000 m 9840 ft
ENGINE, BRIEF DESCRIPTION
Engine manufacturer BOMBARDIER-ROTAX (Austria)
Type of engine four-stroke, with four opposed cylinders
Make of engine ROTAX-912ULS
Cooling composite water-air
Engine power, hp (kW):
- maximum takeoff 100 (73,9) at crankshaft rotation frequency of 5800 rpm
- nominal 93 (69) at CS rotation frequency of 5500 rpm
- in cruising mode 68,5 (51) at CS rotation frequency of 5000 rpm
LIMITATIONS
Maximum takeoff weight: 600 kg 1300 lbs
Maximum landing weight: 600 kg 1300 lbs
Maximum payload 216,5 kg 477 lbs
Maximum aircraft operational empty weight: 383,5 kg 845 lbs
Gas type Auto gas, premium
Fuel tank capacity 65 L 17.1 Gal
Takeoff run 70 m 230 ft
Flight range 650 km 404 mi