How do business loans work?

I am looking to get a business off the ground. I have all of the equipment but need money for advertising. I would like to ask for 50K. My question is that I have projected that I will need at least 3-5 months to turn actually make enough money to pay for the loan. This is the time needed to let advertising kick in and get some jobs.

are there loans that can be deffered for 6 months to get me off the ground or do I need to do venture capital and provate funding?

Business loans are the hardest of all to get. it helps to have a D&B number (Dunn and Bradstreet) but since you are not even in business yet, it won't help you. tough question my friend!
I have some good info that will help you here
http://www.howtogooru.com/credit-guides....
Good luck to you!

A small business loan is one of the most treasured commodities in the business world. It is still very hard to get despite the claims and promises of banks, credit unions, and other lending institutions that they want to help American small<!--business to survive and grow. In fact it sometimes seems that banks and other lenders want to see small businesses fail and only support those that survive the battle for customers, revenues, and finances during their first two years.

http://best-loans.awardspace.com/busines...

Getting a small business loan is most difficult during these first two years, when most businesses face a myriad of challenges involved with not only opening their doors, but hiring and training staff and meeting the demands of customers, clients-->suppliers and vendors. The main reason that the banks use for not granting many loans during this period is like the same reason that a student can鈥檛 get a job coming out of school. They don鈥檛 have the experience.