An aerobatic display team from the Czech Republic perform during the opening of the Aero India 2013 at Yelahanka air base in Bangalore, India, Feb. 6, 2013. More than 600 aviation companies and delegations from 78 countries and regions participated in the five-day event started here on Wednesday. (Xinhua/Stringer)

Helicopters perform during the opening of the Aero India 2013 at Yelahanka air base in Bangalore, India, Feb. 6, 2013. More than 600 aviation companies and delegations from 78 countries and regions participated in the five-day event started here on Wednesday. (Xinhua/Stringer?

Planes perform during the inauguration ceremony of the Aero India 2013 in Bangalore, India, Feb. 6, 2013. More than 600 aviation companies around the world attended the five-day event. (Xinhua/Wang Ping)

A plane performs during the inauguration ceremony of the Aero India 2013 in Bangalore, India, Feb. 6, 2013. More than 600 aviation companies around the world attended the five-day event. (Xinhua/Wang Ping)

A plane performs during the inauguration ceremony of the Aero India 2013 in Bangalore, India, Feb. 6, 2013. More than 600 aviation companies around the world attended the five-day event. (Xinhua/Wang Ping)

A C-17 transportation plane is displayed during the inauguration ceremony of the Aero India 2013 in Bangalore, India, Feb. 6, 2013. More than 600 aviation companies around the world attended the five-day event. (Xinhua/Wang Ping)