What is the signing bonus for an officer in the air force?

The army gives you this huge signing bonus when you join, but what about the air force? I can see different bonuses for enlisted people, but what about if you want to be an officer? They help pay for your education, is that it?

Across the Board, there are NO sign on bonuses for Officers..in any Branch. some communities may have bonuses to entice you to stay( such as the chance at up to $50K of you are a mid tour SWO willing to take back to back Dept Head sea tours in the Navy). Additionally, Officers do NOT get college loans repaid, so if you didn't go through ROTC or one of the Academies, you aren't even offered that.

the AF is downsizing and has no need to recruit people or offer incentives, so bonuses period are few and far between.