WORLD'S BIGGEST COPTER: MI-26 helicopter roped in for relief operations in J-K World's biggest helicopter MI-26, capable of carrying heavy load, has been deployed for the ongoing relief operations in flood-hit Jammu and Kashmir by Chandigarh-based 12 Wing of the Indian Air Force. The MI-26 will be operating ex-Awantipur in Kashmir and will prove to be very effective in flood relief, a defence release said.