Chedchenko,
Yes there are oral boards on the aerodrome stream as well, you need to study pretty damn hard for them (there will be others who will tell you otherwise and claim otherwise - they're either lying or a one of the lucky few who just absorb everything instantly)
Aerodrome and Area are pretty different from day 1, although i havent done Area so cant comment on that side of things
PM me if you want more Aerodrome info
Cheers