I want to know the answer to the following question:
What do heavily laden aircraft sometimes require the assistance from?
All the background I'm provided with is that "Another disadvantage is on mixed flight deck operations where helicopters are also present such as a US Landing Helicopter Dock or Landing Helicopter Assault amphibious assault ship a ski jump is not included as this would eliminate one or more helicopter landing areas, this flat deck limits the loading of Harriers but is somewhat mitigated by the longer rolling start provided by a long flight deck compared to many STOVL carriers.". Is that enough to answer the question?