Irbis UL Bush style
Description
Aircraft for category UL 450 / 600 kg.
In this version is necessary to respect the maximum empty and take-off weight according to the category of operation (450/600 kg). Low weight, powerful wing and powerful engine give the aircraft exceptional flight performance and characteristics.
Aircraft designed for those interested in aircraft with a distinctive style. Due to excellent characteristics of the wing, the aircraft can be operated with the Rotax 912 ULS (100 HP) engine even at very short airports. The excellent chassis with hydraulic shock absorbers makes it possible to operate from lower quality surfaces.
The main criteria in the design of the aircraft were the comfort of the crew, easy control of the aircraft, high safety and quality workmanship. With an extra width of 1.25 m and a natural seating position, the cockpit provides comfort even on long flights. All controls are ergonomically designed and easily accessible from both seats, so they require minimal attention during operation.
Due excellent flight characteristics, it is also suitable for flight training. The aircraft is ready for the installation of tow equipment for towing gliders.
Construction
The construction of the aircraft is all-metal. The highest quality materials are used such as aircraft alloy 6061 or steel ASI 4130. The entire control is fitted with ball bearings.
Fuselage, wings and tail surfaces are half-shell construction. The wing is equipped with a flap and aileron.
The chassis is designed with a star wheel.
Steering wheel-type steering or a "stick" control lever are mounted, but this does not make it easier to board.
Convenience on the plane is ensured by a large cab with a width of 1.25 m, adjustable seats with the possibility of electric shifting and sophisticated layout of all controls, tested on our previous projects.
The propulsion of the aircraft is taken care of by the proven Rotax 912 engine, which with the missile rescue system guarantees the aircraft a high level of reliability and safety.
The 80-liter fuel tank has Irbis aircraft in wings.
Equipment
Basic configuration
- Engine Rotax 912 100 HP
- Adjustable propeller on ground
- Basic flight instruments and motor instrument Kanardia
- Fixed seats, basic upholstery
- Simple brakes
- Steering wheel
- Tank in the wing
- Electric flaps and balancing
- Standard tires 16“
Optional equipment
- Engine Rotax 915 140 HP
- Propeller according to customer's request
- Lever control
- Big wheels 18 "- 21" bush
- Double brakes
- Adjustable pedals
- Rescue system
- Electric sliding seats
- Instrumentation according to customer's request
- Tow device for towing gliders
- Spur detachable from the cab
Specification
Dimensions and weights
| Wing span | 9,0/8,3m |
|---|---|
| Total length | 6,33 m |
| Cab width (shoulder area) | 125 cm |
| Operating multiples | +4 g / -2 g |
| Maximum take-off weight | 600 kg |
| Payload up to | 270 kg |
| Maximum luggage weight | 20 kg |
| Fuel tank capacity | 2 x 40 l |
Flight performance
| Cruise speed | 140-200 km/h |
|---|---|
| Unsurpassed speed | 245 km/h |
| Stall speed (pure configuration) | 70/78/81 km/h |
| Stall speed (landing configuration) | 57/65/72 km/h |
| Climb rate | min 3 m/s |
Power unit
| Engine | Rotax 912 / 915 |
|---|---|
| Maximum power | 100 / 140 HP |
| Fuel | Automotive unleaded fuel or AVGAS 100LL |
| Propeller | Three-blade composite or wooden propeller, adjustable on the ground or in flight |