How Do Canards Yaw? I Just Learned - And It's Not What You Think!

[@DougBinderCozy4]

I've been thinking about this and when you consider how far out the rudders are from the center of mass vs how close the "lift" vector is, it makes sense to think that the drag would be a significant contributor. It is only when you consider the Cl to Cd ratio does everything fall into place. Thanks for the video.

[@superskullmaster]

I don’t think most people who are into aviation weren’t already aware of this. Actually I’ve never even thought control surfaces work on drag. That doesn’t even make sense for drag to be the major factor because the deflection isn’t even high enough. You would need more than 70 degrees of deflection for drag to surpass lift.

[@buttcrack7784]

Flaps work with drag. Creating drag is the purpose of flaps. That they also create lift is secondary.

[@watashiandroid8314]

The only control via drag I know of is yaw on the B-2 (and probably other flying wings). I wonder if anyone tried it for pitch. Probably. It seems like everything has been tried on some military research project!

[@Swaggerlot]

Basic principles of aerodynamics elude most private (and many commercial) pilots. Not at all surprising. But good that you highlight it.

[@oneninerniner3427]

Very interesting, i always wondered about that on those airplanes.

[@mastertech333]

I just learned too! Did not know that!

[@mkepler5861]

thanks Scott, did not know that, canards are just cool. and the Wright brothers knew it all along!!!

[@WoodyPianoShack]

still not quite undestanding the rudder linkage. is one foot pedal steering left rudder right and left. and the other foot steering right rudder right and left? in a conventional aircraft the pedals are interconnected, push one forwards and the other goes back, same thing here?

[@CanardBoulevard]

The rudders move outward only. Think of the vertical stabilizer as a wing with a flap. When the flap (rudder) is deployed, it generates extra lift pushing inwards, which yaws the airplane. So each pedal moves its associated rudder outwards when depressed. When you let up on the rudder pedal, the rudder on that side retracts and aligns with the vertical stabilizer. Pushing both rudder pedals moves both rudders outward. The rudders never move inward at all.

[@WoodyPianoShack]

@@CanardBoulevard thanks good explanation. when you stop pushing the rudder pedal, how does it return to the center? spring or is it the air pressure? fascinating stuff!

[@CanardBoulevard]

@@WoodyPianoShack Both! There are springs inside the rudders that connect to the vertical stabilizers that pull the rudders back in on the ground. In the air, the airflow is more than enough to keep them retracted. When parked outside, I'll put gust locks on the rudders and ailerons to prevent wind from blowing them and damaging them.

[@apollo8352]

I love canards they seem just so logical to me. But why are there right angles everywhere not made radus's ..... and why have they not made the winglets that stick up, made to stick down and contain the rear landing wheels?

[@edwinov]

Very good question

[@FlyMeAirplane]

Very good info.

[@ITSFUNZ]

Great stuff ! Thanks for sharing 😊👍

[@walterbrown8694]

You got it. Good job. - "Keep 'Em Flying"

[@therealkosmic5064]

Interesting

[@jamesharkness1058]

Scott: how effective is pressing down both rudders at the same time for speed reduction? Is it pretty dramatic? If the keep them deployed, on final, does it greatly increase your sink rate like normal flaps? If you found yourself too high on base to final, would this be something you would do along with decreasing throttle to get back on normal glide slope? It would be cool if you could verbalize this in a future video if you find yourself too high in the pattern and needed to lose altitude. This whole double rudder deployment characteristic is fascinating. Makes sense, but as a normal GA pilot, I have no experience with it. I’m just really curious how effective it is. What kind of sink rate could it produce? Great thought provoking video!

[@gmonnig]

Are you heading up to Oshkosh? I’ll be going up there in my Hiperbipe on Sat or Sun. Love checking out the canards. I’ve got my wife convinced that we need a Velocity!

[@darrylwalker1867]

Not specific to canards. That is how control surfaces work.

[@johnwight6041]

Wow that is very interesting

[@chandanamarasinghe]

Interesting, i didnt knew that..

[@georgechoquette5735]

Mostly correct. The winglet is not a symmetrical wing. It actually has a substantial camber. Have a good look at it or find the builder's hot wire templates for the winglet.

[@edwinov]

Why would the designer want an asymmetrical winglet? That means that even without deflection there's a 'lift' component (pulling or pushing) the winglet sideways (which, since it's fixed in place causes torsion in the material).

[@dtplayers]

I have this same question. Asymmetry would lead to induced drag. Maybe the winglet produces small amounts of lift to generate a pressure differential that reduces induced drag on the main wing? Just thinking out loud.

[@valleyken]

- Cool.

[@joell439]

👍👍👍👍

[@irench]

So you're saying that you can depress a rudder pedal and the other doesn't respond with moving toward the pilot? That must have taken a hot min to learn.

[@CanardBoulevard]

Correct. It doesn't take any time to learn - to the pilot, you don't really notice a difference. The only thing that took a bit of time to get used to was pushing BOTH pedals on final to slow down a bit.

[@kmg501]

Isn't this true of all planes?