http://www.sa-transport.co.za/aircra...by-5a_ra98.JPG

OK, I've seen pictures of PBYs with;

1. All three gears down and the outer potoons down,
2. All gears down, potoons up,
3. Gears up, potoons down,
4. and now the above picture with only the main gears down, but nose
wheel still tucked in and pontoons still up or maybe no pontoons.

My question are; are the gears controlled individually, are the
pontoons controlled separately, are the font and main gears controlled
separately also? If so, why?

Wil