more information about ju-87b please

[Gourmand]

hello this stuka fascinating me... but i have limited information about it...
in real life or ingame...
for exemple ingame : switching fuel valve do nothing about the fuel reserve when we are out of fuel are they a way to switch anything?
the compressor should be pulled at what altitude?

are they a pilot's note available on internet ? in free access or to buy

are they a default camo for crossing the english channel ( like blue ? ) or in game it's already the default camo for bob...

in some picture they are number on gear which does not correspond to the tail of aircraft... what this number mean ? if for aircraft carrier ? it's just for park the plane ?





and they are few of skin about stuka, could a skinner make a skin with shark teeth like that :




thanks to share informations if you have it