Way back in the 1950's Cessna 140's and some of the early 150's came with a a fairly conventional (for the times) vertical stabilizer. Then sometimes in the early 1960's Cessna started putting "Swept Back" vertical stabilizers on their airplanes-kinda like a much smaller version of the vertical stabilizer found on the then new Boeing 707 Jetliners. SO MY QUESTION IS: Does the "Swept Back" vertical stabilizers on Cessna's have any practical, AERODYNAMIC VALUE? From a purely practical point of view, WHICH IS BETTER, the "old fashioned" vertical stabilizers found on the 1950's Cessna's OR the more recent "Swept Back" vertical stabilizers? Inquiring Minds would like to know! THANKS!!!!!