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The practice of flying maneuvers involving aircraft attitudes that are not used in normal flight, e.g. a barrel roll.

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2answers
111 views

Are there any aids (like a padded “belt”) that can ease hip discomfort during aerobatics?

When flying aerobatics, particularly maneuvers such as a slow roll, I frequently experience rather high discomfort on my jutting hip bones. I've googled "padded belts" but I have not found anything ...
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3answers
191 views

Simulation of Bombardier Q400 vs Actual Piloting of a Bombardier Q400 [duplicate]

The thief of the Bombardier Q400 at SEATAC stated that he had a lot of simulator flying (I'm guessing like Flight Simulator for the PC?) Some "experts" stated that he must have had more than that to ...
1
vote
1answer
83 views

Fighter YO-YO counter measure?

In a dogfight ("A" Scenario), aircraft "A" is being shot at by aircraft "B". In order to lead aircraft "A", "B" must turn inside "A" and will soon overshoot if "B" does not perform a defensive ...
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0answers
139 views

What airspeed is required for a Hercules C-130J to do a loop?

Last Wednesday a Lockheed Martin LM-100J performed a loop at the world-famous Farnborough Air Show. This is was so impressive! I wonder what kind of airspeed is required for this kind of stunt?
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3answers
181 views

How do aerobatic aircraft land?

The aerobatic aircraft I've seen don't have any flaps or air-brakes, besides they're taildraggers so I guess they usually have to do stall landing or three point landing but I don't understand how the ...
5
votes
1answer
221 views

Why do aerobatic aircraft have separate tanks instead of a single acrotank?

I've been reading about fuel tanks in aerobatic planes such as the Extra 330, Edge 540, XA41 and I don't really understand why in the Extra 330 there are separated center tanks and an acrotank instead ...
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0answers
67 views

Which kind of stability have the aerobatic aircraft?

im designing an aerobatic aircraft (similar to EXTRA 330SC) and i would like to know about the stability lateral and longitudinal, estatic and dynamic. I read somewhere that the aerobatic aircraft ...
3
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1answer
253 views

Why do aerobatic planes have symmetrical wings?

Besides the fact that symmetrical wings fly the same inverted as upright are there any other reasons why aerobatic planes prefer symmetrical wings? Can symmetrical wings achieve a higher critical ...
2
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1answer
165 views

How I determine numerically the roll rate of an aircraft?

I'm a Spanish student of aerospace engineering and I'm doing my final bachelor work that consists in designing an unlimited aerobatic plane, and I wonder if it is possible to calculate an ...
3
votes
3answers
317 views

Which modern day prop (piston) engines allow for inverted flight?

A buddy of mine is looking to buy an airplane with an old radial engine because he says radial engines can fly inverted in aerobatic flying. What modern day engines (engines that you can buy today), ...
4
votes
1answer
164 views

The FARs “require” the wearing of parachutes for certain types of maneuvers. Is parachute training required?

FAR 91.307 (c) requires that each occupant of an aircraft must wear an approved parachute during the execution of certain types of maneuvers (e.g., more than 60 degrees of bank or or 30 degrees pitch,...
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2answers
2k views

Why would the front edge of an aileron fold outward?

I was just enjoying a movie of one Svetlana Kapanina flying her EA300. One camera looks out of the cockpit over the left wing. In a couple of scenes, the aileron of the wing can be seen quite clearly. ...
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5answers
4k views

Why would a plane descend rapidly in uncontrolled manner after a steep turn?

Here's some footage from 2010 Red Bull Air Race. At 0:17 the plane is passing through a gate and then makes a steep turn to the left and that requires the plane to have left wing pointing almost ...
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0answers
115 views

What is the difference between a tail slide and a whip stall?

Can someone tell me what the difference is between a tail slide and a whip stall? Whip stalls are prohibited as far as I know in the C152 Aerobat but watching a video of a whip stall it looks exactly ...
21
votes
2answers
5k views

What's the purpose of “over G” penalties in Red Bull Air Race?

This post mentions that if a Red Bull Air Race pilot exceeds 10G acceleration limit for longer than 0.6s on their plane then they are unconditionally disqualified with "did not finish" result no ...
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0answers
87 views

What kind of plane could be leased back to a flight school?

I was having a brief chat with the CFI at a local club/school and he talked about lease back, assuming that the maintenance and insurance is paidfor by the lease back and isnt an issue the question is ...
3
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0answers
220 views

Is it possible to fly a Cessna 172 vertically?

My question has two dimensions: Disclaimer: Hypothetical question, I am a humble private pilot! 1-How fast you need to be and how fast you need to turn up so that you do not burn out all your ...
21
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4answers
2k views

Can a barrel roll really be executed at a constant 1G?

I see this stated from time to time, for example in an answer to Can large airliners do aerobatics such as loops? A barrel roll is one thing; they can be performed at constant load factor of 1 G (...
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0answers
148 views

Would a helicoper be able to perform a forward inversion (front flip)?

This is inspired by a previous question What would happen if I bank a helicopter then pull hard on the cyclic? I've seen some pretty radical videos of piloting by Chuck Aaron, but I've not seen a ...
5
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1answer
189 views

How is that there is no leak through the fuel vents during aerobatics maneuvers?

Can anyone tell me how aircraft such as jet fighters and stunt planes design the fuel tank vent system to prevent fuel leaking through the vents when performing aerobatics, 360 flips and complex ...
4
votes
1answer
289 views

What is the procedure to enter, maintain and recover from a flat spin?

Looking for a play-by-play from the pilot's seat of a Pitts biplane. What thoughts, considerations and control inputs are required to enter & maintain a flat "pretty" spin and a calculated exit ...
5
votes
2answers
485 views

What is the typical value of maximum lift coefficient for aerobatic aircraft?

I'm working on a conceptual design phase project for aerobatic aircraft (for university) and I can't seem to find any statistics about key aerodynamic properties (such as in the question), so I hope ...
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6answers
6k views

Why use an airplane with non-retractable landing gear for aerobatics?

I'm watching footage from Red Bull Air Race 2017 in Kazan (one example is ) and clearly at least some of the airplanes used have non-retractable landing gear. I was ...
9
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3answers
471 views

How long can an average aerobatic plane sustain 0g?

How long can an average aerobatic plane sustain 0g safely?
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5answers
413 views

How can you fly at 0kts without stalling?

At 0g, stall is theoretically impossible. In practice, can a maneuver be performed that, by bringing the aircraft to, or very close to 0g, also brings the aircraft to a temporary standstill, or near ...
8
votes
1answer
804 views

What is the largest aircraft that has been flown inverted successfully?

What is the largest aircraft that has been flown inverted? For the purpose of the question: Sustained inverted flight is not necessary, therefore barrel rolls and loops count The aircraft must be ...
6
votes
2answers
585 views

What would happen if I bank a helicopter then pull hard on the cyclic?

Prompted by Simon's response to my question here, I will ask another question about reality. If I: Start with a AH-6 helicopter in a hover Pitch down slightly to accelerate, then slowly increase ...
4
votes
3answers
191 views

Is it normal for instantaneous GLOC to occur at 5 G's?

Is it normal for a trainee to have an instantaneous G-force induced loss of consciousness (GLOC) at 4-5 G's in a light military trainer aircraft like Socata TB 30 Epsilon, after doing a manoeuvre ...
3
votes
1answer
150 views

What techniques, tools, or instruments are used while performing zero-g parabolic dives? [duplicate]

There are companies that sell "zero g" rides, where the aircraft is configured specifically to take people and possibly experiments through a parabolic dive to experience a short period of micro-...
6
votes
1answer
790 views

May aerobatics be performed over a controlled airport?

CFR 14 Part 91.303 states: Aerobatic flight. No person may operate an aircraft in aerobatic flight-- (a) Over any congested area of a city, town, or settlement; (b) Over an open air ...
46
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3answers
7k views

What are those things at the wing tip of an aerobatic aircraft?

See: The radially placed needle-like things that resemble a snowflake in the first picture. The triangular structure in the second picture. In the third picture, the object placed on only one wing In ...
3
votes
1answer
113 views

What is the name of the figure consisting of a slow revolution around longitudinal axis? [duplicate]

"An airplane performing one slow revolution around its longitudinal axis is performing one of these..." This was a clue on Jeopardy today. The contestant responded with, "What is a barrel roll?" ...
9
votes
1answer
297 views

How do fuel trim and air bubbles prevention work in inverted flight?

I was reading Why do many GA aircraft not have a "Both" fuel selector? and voretaq7's excellent answer got me to thinking. He cites the regulations noting that the plane must only draw fuel from one ...
16
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4answers
5k views

Why is Russian super-maneuverable thrust vectoring more prevalent than American?

Based on the sheer number of super-manouverable thrust vectoring Russian fighter jets, it seems that Russia has put more effort into developing thrust vectoring for enhanced maneuverability than the ...
6
votes
2answers
657 views

Are low wings less safe for aerobatics training?

I fly a low wing (CZAW SportCruiser) and am looking for aerobatics training schools, however I can only find schools with high wings available for training. My plane has "no aerobatics" placards ...
3
votes
1answer
215 views

During inverted banking, what happens to heading?

In normal flight, a plane that banks will turn and change heading. What happens if the plane is inverted? If the plane rolled 180° then it will not be turning. But if the plane rolled 135° what ...
4
votes
2answers
238 views

Which aerobatic manuvers should I restrict myself to if I wear glasses?

Are there aerobatic maneuvers which I should never attempt if I wear glasses? Or, is there a specific G-loading which is not recommended for pilots who wear glasses? I'm not into competitive ...
5
votes
1answer
278 views

Under EASA rules, what do I need to do to be able to perform aerobatics?

In addition to the aerobatics mentioned in the title, I would also be interested into formation flying. Is there a specific licence to be acquired? Does a licence covers both? What are the ...
12
votes
1answer
274 views

How does an airplane do a Kulbit manoeuvre?

Some time ago, I came across a GIF of a Russian military airplane doing a Kulbit manoeuvre (Probably for showoff). How, in terms of control surface movement, does an airplane to the Kulbit? Source: ...
31
votes
1answer
5k views

Are there full scale helicopters capable of sustaining inverted flight?

Background I'm a model aviation enthusiast and really enjoy seeing how far people can push the limits of aerobatics. Model aircraft are able to push the limits well beyond full scale due to their ...
29
votes
2answers
9k views

What is the difference between a barrel roll and an aileron roll?

I was going through social media and I came across this GIF image that showed a plane doing some sort of roll. It was labeled "Barrel Roll" but in the comments to the post, someone said that it was ...
6
votes
1answer
576 views

Can helicopters perform the Split S maneuver?

In the animation movie "Planes 2" we see the helicopter (Blade character) performing first a 180° roll (getting inverted chassis up and rotor down) and then the U-shaped half loop down into the normal ...
5
votes
2answers
575 views

Can manoeuvres like overbanking and high G braking be used in a single propeller aircraft?

While watching this very interesting short movie: I noticed that for some turns pilot uses overbanking like at 1:25. Basically in a turns more than 90 of bank is used....
10
votes
1answer
612 views

What is the meaning of “Docile pitch behavior” in the context of Pugachev's Cobra?

In another answer on SE Aviation it is mentioned that the ability to perform Pugachev's Cobra in a non-thrust-vectored aircraft needs "docile pitch behavior of the airframe up to approx. 110° angle ...
14
votes
1answer
947 views

What are these lights above the panel in a Blue Angels cockpit?

I found the following picture on the Blue Angels Facebook page: What is the purpose of the lights over the pilot's panel? (The two on the top are green)
8
votes
1answer
559 views

What is the concept behind being able to continuously pour iced tea while rolling an airplane?

I recently saw Bob Hoover's famous video in which he is pouring tea while he is rolling the plane. Can you explain the physics that allow the tea to flow "up" when the plane is upside-down? Why doesn'...
10
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3answers
9k views

How can an aircraft hover almost vertically?

(Source: https://fat.gfycat.com/) The aircraft in this GIF (although being an RC plane) seems to be flying vertically, just meters above the ground. How is this possible? How is it possible to ...
5
votes
2answers
430 views

What would prohibit a T-38 Talon from being certified in the Acrobatic category?

The definition of the acrobatic category in FAR 23.3 reads as follows: (c) The acrobatic category is limited to airplanes that have a seating configuration, excluding pilot seats, of nine or less, ...
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2answers
869 views

How to enter an inverted spin?

Spins cannot occur without stalls. To enter a spin, a pilot would hold the elevator up and let speed bleeds off. This is how you'd approach a stall. Just as the stall starts to develop, apply full ...
15
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2answers
4k views

Does stall angle of attack in inverted flight change due to the camber of an asymmetric airfoil?

What is the stall angle in an inverted flight configuration? How does it relate to the stall angle in normal flight? As visible in the image below, in upright flight the lower pressure is on the ...