No, you cannot fly without the Oilpan. The Oilpan has the gyros/accels on it.
Thanks for your answer, but you perhaps have misunderstood me. I do not want to fly with AP1 only. I bought it for testing purposes only. Now I wonder if it would be better better to buy the new AP2 board instead of buying the Oilpan-board? The AP1 can I use for testing new software without sensors. Is it possible to disable the sensor-functions in ArduCopter?
Thanks again, Egbert.
I would go for AP2. I think all the new developments will be more concentrated on it.
Ok, I think I understand. I actually have no idea if you can even run the program without an Oilpan. Quite possibly it will not run.
APM1 should be supported in the near future. But at this point, I would recommend buying the APM2. It's cheaper, and will be supported for a longer period of time.