Aviatik (Berg) 30.30

The Aviatik Berg 30.30 was a single-seat fighter biplane that was designed specifically for high altittude combat over the Italian front.

Some times it has been erroneously named as the Aviatik Berg D.III, however there aren't proofs to claim that application. It had similar wings to those of the Berg D.I with a new fuselage and was powered by a 230hp six-cylinder Hiero inline engine with a radiator mounted above the upper wing central section.

Sources:
1. Salamander Books - The Complete Book of Fighters
2. http://flyingmachines.ru/Site2/Crafts/Craft25507.htm
3. http://www.airwar.ru/enc/fww1/aviatik3030.html (translated)