Wikipedia writes to say Low Earth Orbit spans the altitude from 160KM above Earth through 2000KM above Earth.
Launch vehicles appear to be highly stream-lined. Yet only the first few score KM (as far as the Karman Line) are in atmosphere. To the best of my comprehension, dead-weight is a no-no on launch vehicles/systems.
The additional mass of aerodynamic sheets may be necessary when the payload for a launch must be protected from the elements. Yet in all other cases it probably constitutes dead-mass.
Is the streamlining of a launch vehicle/stages/components worth the additional fuel required to carry it beyond the Karman line?
What is the earliest launch vehicles may/should jettison the streamlining dead-weight? (This would probably have to be on a case-by-case basis, but any recommended guidelines/parameters ... ?)