"Jim Macklin" wrote in message
news:z3Oxg.84242$ZW3.36485@dukeread04...
They did.

No, they didn't. They approved airplanes that can be configured as *either*
a seaplane, or a landplane, but not both at the same time. A frog doesn't
have to decide ahead of time whether it's going to swim or walk.

A true amphibian has particular operating characteristics unique to
amphibians, not shared with an ordinary seaplane or an ordinary landplane.
The LSA requirements specifically exclude airplanes with these particular
operating characteristics, by excluding true amphibians.

Pete