In the context of the COVID-19 crisis, I read reports of underused Boeing 737-800 NG aircraft being converted (by technicians in airports, not by factories) to cargo planes for medical equipment. How much freight (in tons) can such an airplane transport? How much weight can the place below each seat withstand? The flight distance would be about 5000 km. It appears that one such airliner carried only 9 tons also, as can be seen in the images, it was loaded close to its maximum capacity. I guess the freight (200000 masks FFP2) was light.
9 (nine) tons of medical equipment brought from China by a Tarom aircraft - Bucharest, April 3, 2020. In the middle of the crisis generated by the coronavirus pandemic, a Boeing 737-800 NG aircraft has been reconfigured to import from China 9 tons of medical materials. The plane took off from Bucharest Otopeni airport on April 2 and through Almaty (Kazakhstan) reached Shenzhen (China) and then returned on the evening of April 3. Two Boeing 737-800 NG passenger planes have been reconfigured.