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4
votes
2answers
515 views

What is the difference between a vertical stabilizer and a rudder?

I saw two questions on locating these surfaces ahead of CG: Vertical Stabilizer and Rudder How are these the same or different control surfaces?
3
votes
4answers
330 views

Why aren't there aircraft with forward-mounted vertical stabilizers? [duplicate]

Many aircraft have the horizontal stabilizers mounted in front of the main wings (this is called a canard configuration); however, to the best of my knowledge, there don't seem to be any aircraft with ...
10
votes
1answer
418 views

Why does the C-2 left inboard stab not have a rudder?

As visible in the following picture (wikimedia.org) the left inboard stabilizer doesn't have a rudder but the right one does. Wikipedia on the C-2 describes it as: The C-2 has four vertical ...
4
votes
2answers
500 views

Is there a formula to calculate how big a ventral fin should be?

I've been doing some research into vertical stabilizer designs for a university assignment and have come across ventral fins. I've found a fair bit of information on why they're fitted but can't find ...
10
votes
2answers
3k views

Why are the leading edges on the Boeing 787 made from aluminum?

Why are the leading edges of the wings, horizontal stabiliser and vertical stabiliser and the engine's inlets made from Aluminium?
2
votes
2answers
431 views

Could the vertical stabilizer be removed on the NASA X-57?

I was reading this article about how NASA will develop this new X-57 X-plane which has many tiny electric motors mounted on the wing. Now, I wonder: How come this aircraft still has a vertical ...
0
votes
2answers
308 views

Has there been research into alternatives for the vertical stabilizer?

Are there some activities in research for replacing the vertical stabilizer with a turnable horizontal stabilizer? (flight direction stabilization like the birds)
1
vote
2answers
881 views

How can a flying wing style airplane recover from a spin without a vertical stabilizer? [duplicate]

I fly a Cessna C-172, and if I have any bank when stalling, I have to use rudder to level the airplane. If I use aileron, the bank angle will increase and bring the airplane into a spin. My question ...
21
votes
1answer
955 views

What are the spiky things on the back of the Antonov-225 vertical stabilizers?

On the Antonov-225's split vertical stabilizers, there is a 'spiked' structure pointing directly rearwards (as you can see below). What is the purpose of these two structures? source
7
votes
3answers
2k views

Why doesn't the A320 have a dorsal fin like the 737?

The A320 doesn't have a dorsal fin, but the 737 does. If the 737 is more or less a similar aircraft, why doesn't the A320 have a similar dorsal fin? By Bill Larkins [CC BY-SA 2.0], via Wikimedia ...
1
vote
1answer
479 views

Are the panels in this vertical stabilizer part of the flight controls?

I've noticed some sort of "flight controls" on an A319 vertical stabilizer. Here's the original photo What are those things? Are they used for controlling the movement of the aircraft? Source: ...
33
votes
2answers
3k views

Why do aircraft need a vertical tailfin, but birds don't? (and lots of fish do?)

I don't know of any bird that has a vertical tailfin, but apparently aircraft need them for lateral stability. Why is this? I did realize, however, that most fish have a vertical tailfin, or a ...
5
votes
2answers
1k views

Why is the DC10/MD11/TriStar vertical stabilizer noticeably smaller than other contemporary aircraft?

Why is it that these planes had vertical stabilisers that were noticeably smaller in proportion the aircraft itself to other aircraft? I understand that they had the engines mounted on the tail but ...
7
votes
1answer
408 views

Do vertical stabilizers create vortices like wingtips do?

On a wing, a wing tip vortex is unavoidable no matter what configuration you use, but does a vertical stabilizer form a wing tip vortex? I noticed this picture and saw two vortices coming off of the ...