The PortaPilot is currently compatible with Cessna 172L and newer models (see power requirements below)
Currently, the PortaPilot (Rev. C) is compatible with Cessna 172L and newer models with 14V Aircraft systems. It may only be used on aircraft with 28V systems by using the optional PortaPilot voltage reducer, PortaPilot Backup Battery (available soon), or installing an aftermarket 14V outlet.
Future PortaPilot revisions (Rev. D or later) will operate off 12 to 28 VDC input. Connecting a Rev. C PortaPilot to a 24V system will permanently damage the electronics, requiring it to be sent back in for repairs.
This information is also available for download in PDF format.
Due to variability in elevator rigging from aircraft to aircraft, a spacer may be necessary to position the Yoke Clamp Fork correctly. This is done in order to optimize the range of motion of the Elevator. To determine if any spacer is required, without the PortaPilot installed, fly the aircraft trimmed for Straight and Level flight at an altitude and power setting you typically fly on cross country trips. When stable and safe to do so, measure the distance between the Yoke Collar and the Yoke as shown below (pictured on ground for demonstration only).
Example measurement of 4.5" (No spacer required)
Refer to the table below to determine if a spacer is required. Match the extension amount that you measure to the nearest value in the table below. Spacer kits must be purchased separately. and comes with a spacer and three fasteners. The spacer must be placed between the top half of the Yoke Clamp and the Fork, using a small amount of blue loc-tite or similar on the fasteners.