Installation Guide Instruction Manual
 Autopilot Installation and Configuration 
LINKAGE MOUNT POSITION FORCE AND TRAVEL 
The two diagrams below illustrate the maximum travel and force available at each linkage 
mounting point. As can be seen, the closer you mount the linkage to the shaft, the more force the 
servo can deliver. However, this also means the travel of the arm is shorter. Again, ensure that 
the servo arm is nowhere near going over-center throughout the entire range of the control 
system. 
FlightDEK-D180 Installation Guide    8-9 
Standard Arm 
Max Linear Travel 
A: 2.6”, B: 2.2”, C: 1.8” 
Max Force @ 100% Torque
SV32 - A: 24lb, B: 29lb, C: 36lb 
SV42 - A: 36lb, B: 44lb, C: 55lb 
SV52 - A: 48lb, B: 58lb, C: 72lb 
Long Arm 
Max Linear Travel 
A: 3.4”, B: 3.0”, C: 2.6” 
Max Force @ 100% Torque
SV32L - A: 18lb, B: 20lb, C: 24lb 
SV42L - A: 27lb, B: 31lb, C: 36lb 
SV52L - A: 36lb, B: 41lb, C: 48lb 
In m
ost instances, we recommend that you connect the servo arm to the control linkages using 
the outer-most hole of the servo arm (position A). This position provides the greatest amount of 
travel, with the least amount of drive force. If, when testing the autopilot, you find that the servos 
cannot adequately drive the control system (indicated by a yellow “slip indicator” in the AP 
status at the bottom left of the EFIS screen), you may move the linkage mount point inward, 
provided there is still enough travel to accommodate the control system at the servo location. 
Using either of the two inner-most holes of the servo arm affects the final amount of force that 










