ORIGINAL: scratchonly
Right, if you have a 40 oz servo that rating is 1 inch from center of servo; at 1/2 inch the servo should pull 80 oz. The rating is actually inch ounces. OK?
Actually, that isn't how it works out.
The servo delivers whatever it can depending on the load first of all, and the available juice secondly. The electric motors in the servos don't simply slam out full power. They respond to the load, and give accordingly. But yes, the rating is in inch ounces to provide a basis for comparison.
The magazine article actually takes a stab at explaining that but only in passing. But the magazine article is very worthwhile reading and the magazine deserves credit for an excellent article and we should give the credit for that chart.
MODEL AIRPLANE NEWS
July 2007 issue
"Maximum Control, Inflight Servo Tests"