Cheaper than an aircraft?
I wonder.
Prodigious fuel consumption at sea level. The Lun had 8 engines - appears to need prodigious amounts of thrust too.
Major problems with maintenance due to salt corrosion and accretions.
Much heaqvier, stronger hull structure to withstand the stresses of operating off water.
And it still flies so will need to be certificated as an aircraft.
Maybe a military use for ir but I can't visualise a civil one.