So they must carry huge reserves of fuel ​ — proportionately more than a jumbo jet does, which on takeoff carries about 40 percent of its total weight in fuel.
Nende kütusevaru on proportsionaalselt suurem kui hiiglareaktiivlennukil, mille kütuse kaal on lendu tõustes umbes 40 protsenti lennuki kogukaalust.