Aha, OK, I didn't realize the copter itself was included in the 19 tons. I also saw someone mentioning 40 feet containers weighing up to max 9000 lb (ca 4 tons

Aha, OK, I didn't realize the copter itself was included in the 19 tons. I also saw someone mentioning 40 feet containers weighing up to max 9000 lb (ca 4 tons), but not sure it is a relevant or applicable number.