i want to build my first rc plane from thermocole.i have bought following electronics:-
sunnysky angel 1400kv motor(700-800gm thrust)
hobbysky 30amp esc
wolfpack 2200mah 3cell lipo
3 towerpro servo
flysky ct6b tx and rx.
i want help related to wingspan and body lenght so that i can manage  cg.

Please read the threads on self made models and the places where you can get good plans to make your models.  MY ADVICE..... up to you to listen to it or not....
Decide on the place first and then got the the electronics.
or decide on the plane for which you plan to you the available electronics.

there are a host of plans available.... in case you read the threads first you will get a lot of useful info from the seniors in their replies...

best wishes

@rc-lover@abhishek,
Welcome to the forum.
Please consider simplifying your handle to something like 'abhishek'
Makes it easier for people to reply 
Regards

Try bj3 cub flight test.com if ur motor support 8 or 9 inch prop

hi i made a FT-22 Raptor
from normal foam Board purchased from a stationary
will it fly or not little bit confused