The demon

The kaiser-volta demon was the last advance in the etherjet engines. Pretty late aircraft but formidable as multirole fighter. Some believe this was the fintest moment in the etherjet design. However the next deveolpment in the anti-gravity technology was at the corner in that time, so the time of this magnificent machines was close to end. There were many iterations of this particular class of ship, some were even retro-fited for anti-gravity reactors. By the end of the Great Iron War there were so many models in several sides and factions, even on opposing sides.
This one is circa 1928, on the battle above Krassu