I guess they were smoking the good stuff! The design was dictated by the
desire to have both a high cruise speed and short takeoff and landing
distances. They way to get both was to have a small highly loaded wing (for
high speed) and full span, double slotted fowler flaps (for short
takeoff/landing). The full span flaps left no room for ailerons so they
used spoilers. I am pretty sure that the Mitsubishi Diamond (later became
the Beechjet when Raytheon bought the design.) used the same design. The
MU-2 was much faster than competing designs with the same fusilage size and
power. The new efficiency champ is the Piaggio with its three lifting
surfaces, (actually four since the fusilage provides lift too) and high wing
loading..

Mike
MU-2


"Juan Jimenez" wrote in message
...
Spoilers instead of ailerons _and_ electrically controlled ailerons for
trim on the wing? Man, what were the folks at Mitsubishi smoking the day
they came up with that one? I knew the MU-2 was different but I never
realized just how unorthodox it truly is...

"Mike Rapoport" wrote in message
ink.net...
There are electrically controlled ailerons for roll trim. Of course, you
also trim out the rudder forces too. The basic drill is feather the prop
then "357": three seconds of nose up elevator trim, five seconds of roll
trim and seven "handfulls" of rudder trim. There are a few more things
but none of them are critical.

Mike
MU-2


"Scott Skylane" wrote in message
...
Mike Rapoport wrote:
/snip/ 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.

Huh? Did you possibly mean *rudder* trim, or just how does the roll
trim work on that thing?

Happy Flying!
Scott Skylane
N92054