Van's Air Force
Don't miss anything! Register now for full access to the definitive RV support community.
DigiFlight-II ALT HOLD causes climb
- Thread starter Neal@F14
- Start date
TrutrakTech
Well Known Member
Bingo! Check the servo direction. Engage alt hold on the ground and lift the tail of the aircraft up. The elvevator should move up. I suspect you'll find the servo moves backwards. Check your installation manual for the pitch reversal instructions, it's in the wiring diagram. Thanks!
Neal@F14
Well Known Member
If that's all it is, then the fix will be super easy. The wiring harness for the DF-II came from Stein Air and they included a small loop of yellow wire sticking out the back of the DB-25 connector to cut for pitch servo reversal.
Last edited:
Bob Martin
Well Known Member
A/P
I don't understand how we got from un-commanded altitude change to reversed servo?? seems like reverse is reversed and won't have anything to do with pitch change.
wait.....after thinking this thru while typing, if the A/P tells the servo to go down but it goes up....then it will tell it to go down more.....and it will go up more...
So I see why it would be a brisk altitude change.....
wow, never miss a chance to learn something from the Forums!!
I don't understand how we got from un-commanded altitude change to reversed servo?? seems like reverse is reversed and won't have anything to do with pitch change.
wait.....after thinking this thru while typing, if the A/P tells the servo to go down but it goes up....then it will tell it to go down more.....and it will go up more...
So I see why it would be a brisk altitude change.....
wow, never miss a chance to learn something from the Forums!!
TrutrakTech
Well Known Member
Good to hear!
Where's the "thumbs up" smiley when you need it? Glad to hear it's good to go!
Where's the "thumbs up" smiley when you need it? Glad to hear it's good to go!
