कवायद इसलिए, ताकि मोटे यात्रियों के हिसाब से सीटें एडजस्ट की जा सकें
source https://www.bhaskar.com/international/news/in-the-us-passengers-can-be-weighed-before-being-seated-so-that-the-aircraft-can-be-balanced-and-safe-to-travel-128508182.html
source https://www.bhaskar.com/international/news/in-the-us-passengers-can-be-weighed-before-being-seated-so-that-the-aircraft-can-be-balanced-and-safe-to-travel-128508182.html