5 gen 1930 anni - Flying boats were used to cross
oceans because
aircraft could not carry enough fuel
to travel long
distances non-stop. Flying boats
could fly
between seaports and islands,
refuelling as they went. They didn't
need runways, and it was thought to
be safer to fly across water in an
aircraft that could float. Flying boats
have floats where the undercarriage
would be on a land-base