There is what mclina stated, added to the somewhat delayed response of the plane itself.

It takes a small amount of time for the increased thrust to have a visible effect.

It pays to try to fly the plane near to you and listen for the sound increase of the engine.

It the engine is not sounding like it's stuttering during runup, then what you are experiencing is perceptual.

On the other hand if you can hear the engine lag or stutter a bit before it settles into the higher speed, keep in mind that the engine goes leaner in the air, than on the ground. You may need to richen the low end a little.


Now that said, Super Tiger's are notorious for transition problems in the mid-range.

On one of mine I have NO leaks, etc. yet the engine continues to run after I have completely closed down the throttle fully.

I actually have to pinch off the fuel to shut the engine off.

That leads me to believe that there is a lot of air getting by the metal carb piece that has the opening in it, when the engine is in operation.

On that particular ST .75, I had to set the low end a little LEANER to get transitions right.