With flying boats generally suffering from poor aerodynamics, the Blackburn company came up with a solution - retracting hull flying boats.
Playlist - Blackburn

Blackburn R1 Blackburn – Not Something You Want to Meet in A Dark Alley
Maybe the ugliest aircraft ever (a hotly contested subject) the Blackburn Blackburn (really, that’s not a misprint) was actually pretty good!

The Blackburn Roc; A Terrible Fighter but a Good Idea?
The Blackburn Roc is rated as one of the worst “fighters” ever designed. But let’s look at the method behind the madness.