Complex sentence: An optional Front Electric Sustainer variant was developed for the LAK-17 by Slovenian engineers at LZ Design, it originally had a 0.9 metre propeller, and the latest versions have 1.0 metre propeller, in the nose driven by an electric motor.
Split into simpler sentences: An optional front electric sustainer variant was developed for the LAK-17 by Slovenian engineers at LZ Design. It originally had a 0.9 metre propeller, and the latest versions have a 1.0 metre propeller in the nose driven by an electric motor.