the use of a low-mounted wing and a bubble canopy, result in the aircraft being particularly well-suited to use as a trainer. Its construction principally comprises conventional aluminium, and enables the aircraft to withstand the maximum load limits of +4/-2g. The wing of the Sierra, consisting of a relatively straightforward planform albeit with stall strips present on the leading edges and gently upturned fairings at the tips, was designed in-house by Tecnam. The wing also accommodates a pair of integral tanks that provides a maximum fuel capacity of 100 litres. The wing is also furnished with electrically actuated flaps that are fully-variable between 0° and 40°; the flaps are controlled via a lever on the base of the left-hand instrument console and their position displayed on a gauge mounted at the top-right portion of the engine instrument cluster. The aircraft features conventional flight controls, using pushrods and cables that connect with the ailerons, all-moving horizontal stabiliser and rudder. These controls include an electrically actuated pitch trim function, which is operated via two separate buttons on top of each control column for raising and lowering. A steerable nosewheel provides a high degree of ground manoeuvrability, being controlled by the rudder pedals. Hydraulically-actuated disc brakes are present on the main wheels, operated by a vertical lever on the cockpit floor that also controls the parking brake, thus the presence of a locking switch. An engine-driven generator provides electrical power for the flight instrumentation and other onboard equipment, such as the GPS navigation system, VHF radio set, transponder. Some of the instrumentation, such as for the engine, uses analogue gauges. As standard, the instrument console features four flight instruments. Each aircraft is typically powered by a single Rotax 912 S2 engine, capable of . In a standard configuration, the engine drives a three-blade fixed-pitch propeller; various alternative propellers can be installed, including both fixed-pitch and variable-pitch models along with two and three-bladed models. The engine is controlled via a pair of push/pull throttle levers, one being centrally mounted at the instrument panel's base and the other to the left of the instrument console, there is no mixture control present. Heating of the cockpit is provided via ducted air from the engine, while cooling and ventilation is provided by multiple side louvers. The cockpit is covered by a sliding bubble canopy, this can be opened mid-flight if desired, although the presence of both a