AR Wing front stabilizing fin.

[UrbanFPV]

For all those who use a SonicModell AR Wing, I've designed a front stabilizing fin which reduces yaw wobble.

I found that after attaching my bulky insta360 one x to the nose, this increased yaw stability considerably, so I designed a properly aerodynamic fin to do it in a considerably less draggy way.

Take a look here (when thingiverse updates properly)
https://www.thingiverse.com/thing:4610006

Flew it last night and seemed to work really well.  Roll becomes a bit "stiffer", but the turns are so stable and general flight seems to have less yaw waggle.

[badger1]

I'm surprised that a *front* fin adds to yaw stability - I would have expected that putting a fixed vertical surface in front of the centre of pressure would tend to exacerbate unwanted yaw.

[Bad Raven]

Good for you.

Long while back when I started designing my own indoor and parkfly planes I quickly realised that rudders/rear fins need something up front to push against. In the case of indoor, that was usually a "cartoon" canopy.

A properly set up rudder creates yaw without a lot of couple to pitch.

Even bank and yank Aierlo/elevator (or elevon) planes benefit from some decent vertical surface front and rear.

This is why so many end fenced only wings have a pronounced "hunt" when in a banked turn.