Rally UL

The Rally is the latest state-of-the-art in aircraft design. It can be powered with a 100 Hp engine and constant speed prop to give a 140 mph cruise while carrying 2 tall adults and considerable baggage. This aircraft is highly stable with exceptionally good handling characteristics, a gentle stall, and very short takeoff and landing distances. It is an ideal training aircraft because of these characteristics.

The Rally is a two-place, high wing, single strut-braced aircraft. There are 2 available wings in either metal or composite. For the metal wing, the primary structure consists of an aluminium spar and aluminium ribs with the upper, lower, and leading edge aluminium skins completing the torsion box. The latter feature provides an aerodynamically clean surface for the airfoil. This design increases performance and helps to reduce maintenance and repair costs. The composite wing has a similar structure with all the primary components being composite except for the attachment fittings. The fuselage section is formed by variations of Kevlar, Carbon and Glass-fibre laminates. Over the years S. G. Aviation has used many types of composite materials owing to their capability to form compound curves necessary for the reduction of drag. This type of construction is rapidly becoming the industry standard in this category of aircraft.

S. G. Aviation has considerable and varied experience in composite construction. Our designs ensure strength and stiffness fors all environmental conditions. The use of advanced composites permits complex aerodynamic shapes that would be impossible in aluminium and they can maintain exact airfoil contours and surface finishes that provide the high levels of laminar flow available on advanced airfoils. These composites are not subject to rot, rust, or corrosion. They can be tailored to distribute loading from or concentrate loading into structural hard points. Composite fibres have a near infinite fatigue life and the fibres used are nearly three times the strength of steel. A rugged central spar supports the wing strut and landing gear loads.

The tailplane provides remarkable longitudinal hands-off stability and control with minimum drag and weight. A wide trim-tab provides effective trim capability for all flight conditions. The vertical fin is of all composite structure. The electric Fowler flaps reduce the stall speed to less than 35mph. The ailerons are very efficient, which results in an aggressive roll rate. The differential deflection of the ailerons reduces adverse yaw eliminating the need for rudder in turns.

The aluminium leaf main gear legs provide excellent shock absorption. Wheels and hydraulic disc brakes are of the aircraft type. Toe brakes provide positive steering control. The parking brake is controlled through a pressure lock valve. The steerable nose wheel was designed to resist high impact loads and is suitable for flight school training.

The engine is set low and the cowling slopes down from the windshields to provide excellent forward visibility. The side windows provide for 300 degrees of visibility and the windshield provides for excellent visibility overhead when the pilot leans forward. The cabin is 43 inches wide with ample head room. Many tall people are amazed at the roominess of the cockpit. In fact, the cockpit easily accommodates a 6’ 4” man and still provides sufficient head clearance. The large luggage area behind the seats has sufficient room for 2 jump seats for children. Of course, this area can store considerable amount of luggage.

The control stick has considerable movement and is connected to the controls via push-pull rods, rod ends, and well-designed cable routing. A rocker switch between the seats controls the pitch trim. Aileron and rudder trim are optional. The instrument panel has sufficient space to allow for installation of VFR and IFR panels. Cabin ventilation is provided by ram air. A defrost system is available as well.
The engine compartment is easily accessible allowing for quick and thorough ground inspections and maintenance.

The Rallys’ performance, handling, stability, and safety has been developed over ten years of intensive research and development by experienced and qualified aeronautical engineers.

wing span
wing area
empty weight
useful load
gross weight
fuel capacity
Rotax 100 hp 3 Blade C/S prop
 3 Blade C/S prop 
23 ft 2 in
7 ft
30 ft 1 in
124.96 sq ft
682 – 790 lbs

1455 lbs
22 - 34 US gal


takeoff distance, ground roll
rate of climb
max speed
cruise speed
landing distance, ground roll
service ceiling
426 ft
1000 fpm
149 mph
134 mph
492 ft
12.000 ft

limiting and recommended speeds

design manoeuvring speed (Va)
never exceed speed (Vne)
stall, power off (Vsl)
landing approach speed
40 mph

All specifications are based on manufacturer's calculations