Existing operators of the Israel Aerospace Industries Heron unmanned air system are being offered a way of getting the advanced performance of the heavy fuel engine-powered Super Heron, by taking the avionics package of the older version and “transplanting” it into the new model’s enlarged fuselage.

Unveiled at the Singapore air show in February, the Super Heron HF has a new, more efficient aerodynamic design featuring streamlined curves, a larger engine bay and a long wing with winglets.

The larger engine bay was designed to carry two engine types – either the existing Rotax 914, or a new heavy fuel design from Italian company DieselJet SRL. The latter, 200hp (147kW) engine is based on an automotive diesel engine made by Fiat, which is currently undergoing aviation certification by EASA. […]