Questions tagged [canard]

Smaller surfaces placed near the front of an airplane which provide lift and control forces

Filter by
Sorted by
Tagged with
14
votes
4answers
3k views

Why there so many pitch control surfaces on the Piaggio P180 Avanti?

Picture source. I have seen that there is kind of sonic aircraft like B-1B Lancer that used elevator and canard or fins at the same time for pitch control. That quite understandable because it is ...
12
votes
1answer
591 views

Does the B-1B Lancer have controllable canards?

These three pictures shows the B-1B Lancer's canards and its elevators. I am not sure to call that feature a canard as the jet also has elevators. In my limited understanding, canard and elevator are ...
6
votes
1answer
118 views

Why do some canard aircraft have dihedral on their canards?

For instance, Rutan's Solitaire and Steve Wright's Stagger-EZ. What are the benefits of having dihedral on the canard? It seems like canard dihedral increases yaw instability, and requires a bigger ...
5
votes
1answer
114 views

What is the suggested position for a canard?

In a canard aircraft, what is the suggested position of the canard, with respect to the wing positioning? Considering the effect of down wash of the canard on the wing, what is the suggested position ...
4
votes
2answers
282 views

Identify canard, low-wing, single pusher-prop plane over Upstate NY

Yesterday, August 11, at around 3:30 pm, I saw an unusual-looking plane flying over Ithaca, NY. It seemed fairly small -- approximately business jet sized. Unfortunately, I didn't have time to get a ...
2
votes
1answer
339 views

Why didn’t the Concorde have flap-canards like the Tu-144?

One of only two ways of which I am aware in which the Tu-144 was “ahead” of the Concorde1 was in its use of retractable flap-canards, which increased the lift on the front of the aircraft at low ...
4
votes
3answers
504 views

Why aren’t there any lifting-canard airliners?

A lifting-canard aircraft, such as the Long-EZ, is an aircraft with the main wing at the back end of the fuselage and a pair of small, highly-loaded canards attached to the forward fuselage; the ...
1
vote
0answers
24 views

Is some sweep beneficial with taper?

I'm developing a canard glider which requires some taper for the canard to stall first. I understand that sweep is typically only for aircraft in a compressible airflow (M >= 0.3), but is there any ...
3
votes
1answer
273 views

Are canards useful for ultra low flying aircraft?

In this question about canards, they are described as being useful mostly/only for supersonic configurations which are unstable at regular? speeds. But for a low power, ground hugging aircraft, ...
2
votes
1answer
512 views

Does it make sense to use a canard in combination with a conventional aft elevator control surface?

I am designing a UAV and have settled on a canard design. However, I’m curious whether it would be helpful to have a typical horizontal stabilizer behind the wing as well as a canard wing in front of ...
0
votes
2answers
330 views

Why does the Rutan Voyager use canards? [closed]

Can anyone point me to why Burt Rutan's Voyager is a canard? In other words, what reasoning could be behind it. What problems Burt Rutan might have tried to solve by using Canard configuration in ...
1
vote
1answer
1k views

Why are “canard” not used on commercial aircraft? [duplicate]

As of today and as far as I know, there is no commercial aircraft with canard, while they are used on several military aircrafts (like Rafale, Typhoon). Plus, during take off the empennage pushing ...
-2
votes
1answer
220 views

Why do we use the length of the canard as 1/3 of the wing?

Twisted canard is our project, so we are designing and analysing the model. We compare the twisted canard with an untwisted canard to find the best among them. The problem is we designed a canard of ...
15
votes
2answers
3k views

Why aren't the canards used as airbrakes on the Tupolev Tu-144?

The Tupolev TU-144 uses retractable canards to stabilize the aircraft while starting and landing. On this picture you can see them very well: Source: AirlineFan.com Copyright: VOLPATI It doesn't ...
8
votes
3answers
1k views

Is the Suntoucher CG too far aft?

I acknowledge my very limited understanding of flight mechanics, but at first sight something tells me that the CG of the Suntoucher solar aircraft concept lies too far before the main wing and the ...
6
votes
1answer
913 views

How do canard flaps work?

Before examining this XB-70 picture I thought that all canard were one single flight control surface (as seen on many fighters such as the Eurofighter Typhoon), and that there functionning were ...
5
votes
1answer
973 views

Who invented the canard wing?

Who invented the canard wing? I know that early planes like those built by Santos Dumont and the Voisin brothers used canard wings but who invented the canard wing? Update The plane built by Hiram ...
0
votes
0answers
134 views

How can the canard configuration increase the aircraft's maneuverability? [duplicate]

I know that in many of the fighter jets, there are canard configurations like in F16, SAAB Gripen etc and heard they increase the aircraft's maneuverability. Can anyone explains how a canard helps in ...
9
votes
2answers
2k views

why are there no production canard GA aircraft?

You see a lot of experimental canard GA aircraft, and their performance characteristics seem great. Why don't we see any production canard designs? EDIT For clarification. I'm asking about small ...
16
votes
4answers
7k views

What is a canard?

While browsing this Stack Exchange, I regularly come across mentions of canards. I am not familiar with this term, and Google only gives information about ducks when I search for "canard". So, what is ...
18
votes
3answers
9k views

Why is the Tu-144 the only commercial airplane with canard configuration?

I understand the delta wing was chosen because of the supersonic cruise (like the Concorde), and canards were added to reduce the approach/landing speed. But canards may be used without delta wing (e....
21
votes
3answers
5k views

Why is the use of tail-down force so common?

Why is the use of tail-down force so prevalent in aircraft design? Why not use canards to avoid induced drag?