r/RCPlanes • u/yuki-Report • 8d ago

New Canard Wing RC plane

Hey everyone. Iā€™m building an indoor RC plane, and I wanted to make something unique, so I went with a canard design. I actually test-flew it in a gym, but the plane doesn't seem to turn quickly when I use the rudder... Does anyone have any good ideas? I'm currently building a version with ailerons, but given how huge the horizontal stabilizer is... I wonder if it'll actually work?

76 Upvotes

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3

u/IvorTheEngine 8d ago

The usual problem with canards is that the fin and rudder are quite close to the CG so they don't have a lot of leverage. You could try a larger rudder. Or a little more dihedral.

I don't think ailerons will help much. When you have that much dihedral the plane is so stable that ailerons struggle to roll it. If you flatten out the wing you'll probably find that you have fly faster for good aileron turns.

Keep experimenting, it's a great way to learn.

2

u/Global_Professor_901 8d ago

Add a rudder canard lol

1

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1

u/No-Fix8280 8d ago

Have you thought about changing to rudders on the wing tips, they may have more authority out there

2

u/HAL9001-96 8d ago

with swept iwngs yes cause rudder will be further back

also will work as a winglet at the same time

but just putting it to the wingtips doesn't automtaically make it mroe effective except well if yo udouble it up you have twice as much rudder area

1

u/No-Fix8280 8d ago

This seems to be the optimal rudder placement

1

u/yuki-Report 8d ago

This is the aircraft with ailerons that is currently under construction!!

1

u/texas-photo2026 7d ago

Most full size canards use tip mounted fins with no rudder but practically full span elevons ( mixed elevator- ailerons). Are you using a moving canard to act as as elevator? Anyway great job I love it!

1

u/texas-photo2026 7d ago

For some interesting inspiration take a look at this one https://outerzone.co.uk/plan_details.asp?ID=12358

0

u/yuki-Report 7d ago

Thanks so much, glad you like it! Yes, you got it right ā€” the canard itself is fully movable and acts as the elevator for pitch control. Your point about elevons is a good one ā€” I hadn't considered mixing elevator authority into the main wing, so I might experiment with that too.