Flow Aligned Ribs (FAR)
Flow Aligned Ribs (FAR) is an APCO construction in which the ribs morph direction from centre to tip, aligning with the natural direction of the flow — per the manufacturer for more performance and roll stability across the speed range. Built into the F1, F3, F3 Bi and NRG III.
Also known as: FAR · Flow-Aligned-Ribs · Flow Aligned
What the manufacturer says
The FAR description comes verbatim from the product pages:
“Incorporated into the F3 is our Flow Aligned Ribs (FAR) feature, morphing direction from center to tip, it aligns the ribs with the natural direction of the flow, increasing both performance and stability throughout the speed range. The roll stability of the F3 is especially impressive, allowing for agile, precise handling.”
On the F3 Bi, APCO adds: “Combined with the Mohawk system, the roll stability of the F3 Bi MK-2 is especially impressive, allowing for agile, precise handling and perfect soft landings every time.” Short form on the pages: “Amazing Roll Stability powered by Apco’s Flow Aligned Ribs.”
Where it is used
Per the manufacturer, “as with the F1 and F3” — FAR is built into the F1 MKII, F3 MKII, F3 Bi MKII and NRG III.