I soloed in two weeks. But I was anxious to solo and loved to fly. I had a lot of experience with C/L and free flight and understood the basics of flight before I ever started with R/C.

I've seen one guy solo after 2 flights. The second flight was just to make sure it wasn't a fluke.

On the flip side, older folks tend to take longer. We have some people in our club who have been on a trainer cord for a couple years and always will be.

It just depends on how well you understand flight, how coordinated you are and several other factors. Basically you need to understand how an airplane flies. I especially think it's important to understand every kind of trouble you can get into with any given maneuver and what you're going to do about it.

Personally, I wouldn't want to solo someone until I could put his plane in a spin and hand him the box and a few other maneuvers (with altitude of course).