Drago Jovanovich

Born in the Kingdom of Yugoslavia, he subsequently moved to the United States, living first in Philadelphia and later in southern California.

Jovanovich and Frank Kozloski founded the Helicopter Engineering Research Corporation (HERC) in Philadelphia, Pennsylvania in 1946.

A new version the Jovair Sedan 4E called the Jovairin was type approved by the FAA in March 1963.

The company moved its facilities from Culver City to El Segundo at this time with Jovanonich as its Vice Chairman.

[8] Development was slow because Jovair lacked staff and resources yet the first prototype flew in 1962.