Tail wing question: High or low?
 

looking over the various designs of planes (and this may need to be moved to the builder forum) but is there a difference where the tail wing sits ? I see some on the top, in the middle or on the bottom.

Tail wing question: High or low?
 

Short answer:
In theory, yes, it can matter.
In practice, on a beginner's plane or typical sport plane it makes little to no difference.

Tail wing question: High or low?
 

Often it will be located where it is away from the wake of the wing, so that the wing's turbulance won't affect it.

Tail wing question: High or low?
 

also to stay away from the prop-wash/ slipstream.