Originally Posted by
NSEU
I haven't spent much time in the forward stabilizer compartment, but your image seems to match the maintenance manual.
There is no mention of total jackscrew length or diameter in the manual, so it will be difficult to create scale diagrams of the assembly. The trim only moves the assembly 21.51 inches during control column trimming (less if the flaps are less than 5 units). i.e. from 0.25 units (full nose down) to 12.8 units (full nose up) with column switches. Maximum range of the stabilizer is 0~14.2 units. 2 units is neutral.
At full nose down (0.25 units), the top of the moving part (ballnut) is within an inch of the upper stop.
Thanks!
This is obviously the HS jack screw. It seems like it is at about position 2.5 or 3. So, close to neutral or slightly nose up.
Last edited by SteinarN; 9th Mar 2019 at 13:47.