Comparison of flights
Points more towards engine failure.
I def recall someone earlier on this forum say that those air bases are also high up in the mountains while Indians are trying to fight from the bottom and therefore is already at such a disadvantage that China jets could take off partially loaded and still feel comfortable.Last paragraph from the article.
The Chinese are still at a disadvantage because their planes can only take off partially loaded from the air bases on the Tibetan plateau, so they have to come in from far away with the help of refuelers. The Chinese still rely on a robust system of radars and other air defence systems. UAVs have been deployed in significant numbers, giving them an edge that can make up for the fact that aircraft in Tibetan airspace cannot take off with a full load.