Hello, I am James! Welcome to Horizon Hobby, how can I assist you with finding the right item to suit your needs?
Does the Radian Pro BNF come with everything needed to fly including the Transmitter?
The BNF will not include the transmitter, but everything else.
Is there a package that includes everything including the transmitter?
Unfortunately there is not a RTF version offered.
What do you recommend in terms of an RTF for a beginner sailplane for a 13 year old
Unfortunately there isn't from Horizon an RTF sailplane begginer setup. The Radian Pro would be a good option, you would just need to look into getting a transmitter as well. Which in the long run would be a better setup as you would have a good transmitter for down the road.
I see. Is there a cheaper begginer option, because the Radian Pro seems the most expensive.
You can get the Apprentice S 15e RTF for $269.99 RTF or the Super Cub S RTF for $199.99