R4 plans specify UP AND DOWN RANGE .
Does this mean the center of the trailing edge referenced to the elevator surface ( top and bottom) 0r the centerline of the elevator ?
Does up and down spec refer to the direction of deflection, or the resulting response of the airplane nose ?
Example: moving the tab Up from neutral results in a NOSE DOWN RESPONSE AND THE OPPOSITE IS TRUE FOR TAB DOWN RESULTS IN NOSE UP RESPONSE.
Also these specs appear to conflict with the most probable RV4 condition. depending on your interpretation above, a heavy passenger or baggage could benefit from more NOSE DOWN TRIM CAPABILITY THAN NOSE UP. Of course this assumes neutral balanced empty weight.
your input is appreciated.
Does this mean the center of the trailing edge referenced to the elevator surface ( top and bottom) 0r the centerline of the elevator ?
Does up and down spec refer to the direction of deflection, or the resulting response of the airplane nose ?
Example: moving the tab Up from neutral results in a NOSE DOWN RESPONSE AND THE OPPOSITE IS TRUE FOR TAB DOWN RESULTS IN NOSE UP RESPONSE.
Also these specs appear to conflict with the most probable RV4 condition. depending on your interpretation above, a heavy passenger or baggage could benefit from more NOSE DOWN TRIM CAPABILITY THAN NOSE UP. Of course this assumes neutral balanced empty weight.
your input is appreciated.