Furthermore, the Sierra could also be supplied in a near 'ready to go' configuration suited to the European trainer market, which was one reported consequence of having secured its VLA certification.

[2] Since the introduction of the original model, Tecnam has continued to develop the Sierra and pursue additional certification of the type.

In the 2010s, in response to customer demand for more luxurious features, the firm introduced the improved Sierra MK II; it is available in three styles: standard, premium, and power.

[1] During February 2020, it was announced that the Sierra Mk II had been certified as an ultralight aircraft by German authorities, clearing the type for use across most of Europe.

[2] 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.

[2] The aircraft features conventional flight controls, using pushrods and cables that connect with the ailerons, all-moving horizontal stabiliser and rudder.

[2] 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.

[2] In addition to possessing benign stall characteristics, including easily recognisable indications of pre-stall buffeting and being controllable post-stall in roll via the ailerons.