Hey Saucerer, Dan and GG,,,thanks all for your messages.
Our company currently uses a 441 Conquest x-hired from Corp Air, and this works well.
The Airvan idea I think is for a possible second camera, a back up if you like.
The rudder trim issue is indeed important as the quality of our imagery is right up there with worlds best and the client pays accordingly!
Considering its relatively slow cruise speeds, lack of pressurisation, ventilation issues, compromised comfort for the pilot and maybe one or two more issues, I dont see it fitting into our operation very well.
But having said that, you never know.
Neways,,,,really appreciate all your suggestions etc,
Sunny days
