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POF
Jan 16, 2007, 03:22 AM
I have a problem with my MC22 aileron differential. I’m not sure if I did it wrong, didn’t understand it or if this is a software bug.

I have a few phases on my gliders and the problem is in the Launch phase. My flaps and ailerons are set with some deflection e.g. +9 degree. With this camber I would like not to add more deflection during the Launch phase if I have to use ailerons.

With 100% aileron differential in MC22 the ailerons goes only up and not down. But this only works correct when the aileron position is in 0 degree. With 9 degrees deflection it moves down to maybe 15 degrees when using the aileron stick. And this is not what I want…

I have the aileron/flaps positions controlled by the same wing mixer that is used for crow/butterfly brakes so in Launch the stick is used for 0 to +9 degree for ailerons and flaps and in Normal phase the stick is used for 0 to -5 degree for ailerons and 0 to +70 for flaps. All this I have in the left Ch1 stick.

Any ideas?

Thanks in advance
Peter
loic_debisschop
Jan 16, 2007, 03:59 AM
Yes: you must have the "differential reduction" function at some value. Tune it to zero percent, it will solve your problem. Have a look to MC22 manual to see the need of differential reduction function.

Loïc
POF
Jan 16, 2007, 11:47 AM
Yes: you must have the "differential reduction" function at some value. Tune it to zero percent, it will solve your problem. Have a look to MC22 manual to see the need of differential reduction function.

Loïc
Hi Loic

Thanks for your reply.

Sorry but it is not correct. I have 100% aileron differential in my Launch phase. I noticed that it is working ok for the flaps which I have mixed with “Aileron to flaps” mix. So it’s a bit funny that it’s not working for the ailerons.
loic_debisschop
Jan 17, 2007, 05:23 AM
Hi Peter,

You didn't tell if you had checked the "differential reduction" function. This mix has an impact on your differential function. It is used to reduce diffential to keep good roll control in the landing phase. (with crow braking)
Are you sure it's not that ?

Loïc
POF
Jan 17, 2007, 11:20 AM
Hi Loic

Thanks again for your reply.

You are absolutely right! My problem was the "differential reduction" function. Thanks!

I just love this forum :O)

Peter