>Ermmm...Im sorry>for this silly question but....why does Citation X have no>autothrottle in real life? How does the CX tell the autopilot>to hold a certain speed, Im curious to know thank you :)Hi Nevin !The Citation X AP holds IAS by adjusting pitch it is very easy andconvinient. Climb - lets say climb at 250 kts... set climb thrust - at 250 kts press IAS and the plane climbs at 250 kts all the way up. By adjusting the V/S wheel you can adjust airspeed as well (wheel down speed up - wheel up speed down) Descend - lets say at 280 kts. throttle idle speed 280 kts press IAS and so on...you can find a very good freeware autopilot in the ATR42 package by Francisco Sanchez Castaner here in the avsim lib, that works almost the same as the Citation X AP. There is no autothrottle (in real) in most of the "small" jets CRJ,ERJ, Lear, Citation ....and absolutly NO autothrottle in any turboprop aircraft ! Hope this helps ...Tom (LOWW)