Cg Ocs
Coast Guard OCS is 17 weeks and takes place at the CG Academy in New London, CT. A good place to learn all you can is
www.coastguardocs.com, it will go more in depth as to what you can expect.
While at OCS you will apply for Flight School...my advice is if you are accepted into OCS that you take the AFQT prior to being at OCS. That way you can get plenty of sleep the night before and take the test, vice being sleep deprived at OCS (which is a large part of OCS, let's be honest) and hoping for the best.
Primary/intermediate flight training is with the Navy at Whiting Field, then remain there for advanced for helos, or on to Corpus Christi for fixed wing advanced. The final training is at Mobile, AL for helos or the Falcon jet or Little Rock, AR for the C-130.
If you have any specific questions, please feel free to PM me and I will try to answer them.