Complex sentence: The first F.E.2a made its maiden flight on 26 January 1915, but was found to be underpowered, and was re-engined with a Beardmore 120 hp (89 kW) liquid-cooled inline engine, as were the other eleven aircraft.
Split into simpler sentences: The first F.E.2a made its maiden flight on 26 January 1915. It was found to be underpowered, and was re-engined with a Beardmore 120 hp (89 kW) liquid-cooled inline engine, as were the other eleven aircraft.