i have plane from china would like to know where to place robart hiinges they show 4 to each wing this is trainer 40 plane with 46ax motor. just crashed plane before this one have soloed and need information about placing hinges and other hinges for rudder and elevator. the instructions for this plane show ca hinges they siim to be harder to install than robart. am planning to use 1/8innh hinges what to do if tailelevator is shorter than hinge

Are we talking about an ARF?
If so put the hinges in the precut slots. (CA hinges are very easy to install by the way)
Download the instructions for any Hangar 9 or Great Planes ARF and you will get easy to follow instructions for installing CA hinges IN ENGLISH.
The Robarts would go in the same slots but you may have to resize the slot a bit.
If there are no precut slots then evenly space the hinges.
If a hinge is too long cut off what you need to.
Tug on the control surface after the glue sets and make sure it is held firmly.
It seems daunting at first but after you put an airplane together it really isn't all that hard.

Hey Missileman can you tell me how to use a incidence meter.

Sorry, never used one. All of my airplanes are either ARFs or kits and the incidence is already set by the manufacturer (at least on the models that I have had)