[Mark Hislop]

Hugh:

Planes are like people...they get heavier as they get older. As the model line evolved, the aircraft had options and features added. As you noted, the engines stayed the same, except for the addition of turbocharging. More weight with the same horsepower equals less performance.

I was always under the impression that the airframe and controls stayed the same thoughout the model line, except for changes needed for the P models. But I don't know that for a fact.

Mark