Making the switch from Enlisted to Warrant Officer
SGT Howard,
Recently on the Warrant Recruiting website there was a message posted listing various MOS's that were currently experiencing shortages for board packets, with 153A being one of them. They stated that selection chances for 2014 were "extremely high". This probably changed, since the entire message is no longer on the main page of the website.
While you cannot be older than 33 at the time of your board convene date, they do make exceptions for age for "applicants with exceptional qualifications and only on a case by case basis".
There are other Warrant MOS's that you can feed into from Infantry, such as UMO and I believe a networking job, however I do not know the other prerequisites.
The Army NO longer uses the AFAST as the criteria for potential rotary wing pilots. The new test is the "SIFT", and I do not believe there is a study guide available. I have personally been studying different sections from an AFAST study guide, as well as sections from Marine Corps/Navy/Air Force flight tests. Another book called "Principles of Helicopter Flight" (W. J. Wagtendonk) is a very useful book and packed full of information!
A minimum score of 40 on the SIFT is required for flight school, with a maximum score of 80. It is not a paper test, and as far as I know all education centers administer the SIFT electronically, simply requiring a signed 4187 by your commander. Test results are immediate.
Hope this helps!


Warrant Officers
