There is really no major difference except spoilers are more effective at
low speeds and don't "stiffen up" at high speeds. Spoilers also provide
effecive roll control in a stall and don't produce adverse yaw. On the MU-2
the relationship between control yoke movement and spoiler movement is such
that slightly more yoke movement is required than on most aircraft for the
same roll rate. It take people about 10hrs to get used to it. Also, In the
event of an engine failure you want to use the roll trim so that you can
neutralize the yoke because you don't want to have a spoiler sticking up.

Mike
MU-2

"john smith" wrote in message
...
Mike, just how different is it flying spoilers vice ailerons?