Weeeeellll... If none of them really has an autopilot... and you're sure... you can always try to find another or cheat.

You know the radio stack of the Cessna? The one with autopilot inbuilt? Now, enter the panel.cfg of the C172, find the [Windows01] entry, select it ALL and copy the selection in the clipboard, go in the panel.cfg of your 707, locate the last [WindowsXX] of that panel and add a new entry with the appropriate following number.
Start-up your 707 and cycle among the pop-up windows. My compliments, you now have a 707 with a M$ Cessna autopilot. [smiley=thumbsup.gif]
(BTW. Someone should pop that bubble one of these days and tell to M$ that there's no
Santa Claus Cessna in existence that has an autopilot that complex.

)
You'll have to keep throttle manually, but for the rest... have fun.
