Originally Posted by
outnabout
I have been told by someone way senior and w-a-y more knowledgeable than me:
Night rating, instrument rating, aerobatic rating, low level rating - all ratings need to be checked regularly (annually for instruments, every 2 years for any others - bad habits creep up on all of us.
Tail wheel, basic gas turbine (ie C208), csu endorsement - endorsed on a design feature of an aircraft. Yours for life. Only check is whatever is required by the owner / operator of the aircraft you're trying to borrow.
Makes sense to me - well as much sense as any of this does...
Aerobatics isn't a rating it's a flight activity endorsement and does not need a flight review to remain current.