The Chinook formation will comprise the helicopters in 'vic' formation, an IAF official said.
Newly-inducted attack helicopter Apache and transport chopper Chinook will take part in the Republic Day flypast for the first time on January 26, officials said on Monday.
The 'Chinook' formation will comprise three newly-inducted transport helicopters in 'vic' formation, a senior IAF official said.
Following them will be the 'Apache' formation consisting of the latest attack helicopters of the Indian Air Force. The five attack helicopters would be flying in 'arrowhead' formation, he said.