Dedics Ferenc with Dedics Kalman were pioneers of aviation in Hungary (along with Adorjan Dedics).

-They built airplanes in 1910-11. They also built two engines: the "Dedics Forgómotor" or "Dedics rotaries".

-The one from 1910 was a seven-cylinder with a piston diameter of 110 mm and a stroke of 120 mm. The power was 120 CV at 1500 rpm.

"Dedics, 120 CV"

-The 1911 model, a smaller rotary engine with seven smaller cylinders, gave 60 CV.

-Both exhibited at the Budapest Museum.

"Dedics, 60 CV"

From Appendix 9: A Dedic rotary radial engine is also exhibited at the Vienna museum.

"The pretty Dedic exposed"

-Photo sent by Evzen V.