NEW DELHI: The IAF has clocked over 1,000 sorties with its own heavy-lift aircraft such as C-17 Globemaster-III and Ilyushin-76 to transfer containers and medical equipment from overseas and inside the nation in the fight against oxygen deficit and transport bottlenecks throughout the next Covid-19 pandemic tide. “It’s been a enormous effort because mid-April. All these 1,000 sorties, including 161 sorties from overseas, don’t incorporate those being used by medium-lift aircraft such as C-130J’Super Hercules’ and Antonov-32,” said a defence ministry official on Monday. From overseas, the IAF has airlifted over 120 containers along with also a heap of above 500 metric ton of medical equipment from countries like Singapore, Dubai, Thailand, Germany, Australia, Belgium, Indonesia, the Netherlands, UK, Israel and France. The IAF has been hauling empty liquid chemical oxygen containers because airlift of wealthy ones may be poisonous.