Do A Barrel Roll 20 Times

[Custodio Groves]

Do a Barrel Roll" is a hidden feature on Google Search that triggers a 360-degree spin of the search results page. To activate it, simply search for "Do a Barrel Roll" on Google or type "Z or R twice" after your search query and press Enter.

With a twist from elgooG, the barrel roll is taken up a notch. Not only can you execute a barrel roll on this page, but you can also try out different spins, like rolling 20, 5.5, or even 10,000 times, and control the roll's speed with your mouse or keyboard.

The Google "Do a Barrel Roll" Easter egg utilizes CSS3, a web design language that enables the rotation, skewing, and transformation of web page elements, as well as animation of those transformations to create effects like this barrel roll.

While the original Google Easter egg performs a single barrel roll, you can make Google execute multiple barrel rolls on elgooG. This page lets you choose the number of barrel rolls, from two to 10,000 times, and adjust the roll's speed and direction.

In a properly executed barrel roll, however, I do not think there is any point in the trajectory where the vertical velocity is constant. In particular, the entry and exit of the maneuver require transitions from level to ascending, and from descending to level trajectories, respectively. In these two cases, at least, I cannot see how a load factor greater than 1 can be avoided.

You are absolutely right, a load factor of greater than 1 is impossible to avoid in a proper barrel roll. The barrel part of its name comes from the spiral path the aircraft needs to perform in order to add a centrifugal acceleration which is greater than gravitational acceleration at the top of the roll. This is the condition to ensure a still positive normal load factor in the reference system of the aircraft through the whole roll. Therefore, at the bottom of the roll the normal acceleration needs to be greater than 2 g.

I took the liberty to edit the wrong answer. Given that it has received 14 upvotes at this time, it should teach everyone around here a lesson how much to rely on the number of votes to assess the correctness of an answer ;-).

If you do, it would look sloppy as the idea of a barrel roll is the aircraft rotates at a constant radius about a point off one of the wings, creating a helical or spiral flightpath. The erect portion of the maneuver would require around a 2g load factor to perform correctly, the inverted section reducing to 1g or so.

Recover slowly, employing a load factor only slightly larger than unity. In practice, the recovery must be complete before the aircraft overspeeds or impacts the ground, both of which happen rather quickly.

Perform the aileron roll quickly to minimise the time in non-level attitude. The less time you spend in the roll, the slower the resulting descent will be. If you can perform the roll in zero time, there will be no dive to recover from. In practice, the aircraft's roll rate is limited.

In a classic moment of airliner history, Tex Johnson barrel rolled the Boeing Dash 80 (the 707 prototype) over a crowd of potential customers. Not once, but twice. And this was the Dash 80's first flight in front of the public.

If they ever resumed the old video series "And They Walked Away", Ryan Preece's terrifying ride near the end of Saturday's NASCAR Cup race at Daytona International Speedway would likely be a top candidate for that.

Preece was at the back of the lead pack when it appeared he may have been tapped by another car, sending him onto the infield grass and then resulting in a barrel roll that saw him flip 10 times before his car, miraculously, ended up on its wheels.

@JerryBonkowski is an award-winning writer/columnist/editor who has specialized primarily in motorsports -- most notably coverage of NASCAR, IndyCar and NHRA -- for much of his 30-plus-year career. He has worked full-time for many of the largest media brands including USA Today, ESPN, Yahoo and NBC. He started AutoRacingDigest.com in partnership with Sports Illustrated in 2022 and serves as the site's editor and publisher. He also is a regular contributor to Autoweek.com and NASCAR.com. Follow Jerry on Twitter @JerryBonkowski

Soon Allen got a sense of what a public-relations coup the barrel roll had been. That evening, Johnston was at the Allen home for a dinner that included Eddie Rickenbacker, the flying ace who became head of Eastern Airlines.

A 707 would become the first jet Air Force One. Boeing could rightfully say that the 707 is one of the 10 most important airplanes in aviation history, and it represented one of the most important business decisions in history.

1. Any reference. It doesn't matter if it's a cloud, ground, the point is that you have something to look at and 'roll around'. Really it's more like 'pick a reference', you don't need it to be 45 deg off.

3. Yeah seems simple enough, but great job on the instructions missing the full thing - here you're blending aileron and pitch input together. You blend 'as required' so that you're not in an aileron roll (so you need back-stick here) while at the same time not pulling insane g's (unless you need to). Adjust roll and pitch to maintain your reference in #1 in the same relative place.

They're describing some sort of perfect 1g-ish barrel roll here. It's nice to learn because it teaches you how to fly precisely, but that's about it. You can do a 1g barrel roll, you can do a 9g barrel roll too ... it all depends on what you're trying to accomplish.

A proper barrel roll is like a rolling circle - easy to describe, but it requires great familiarity with the airplane to do well. In the competition acro world where this precision is graded, it is ideally a continuous roll combined with a continuous smooth pull, so it's almost like doing a loop and a roll at the same time. There should be no pauses or dramatic rate changes in either the pitch or roll; they should both be smooth and continuous.

No reason why it couldn't be done in a hornet, but a warbird or the christen eagle might be better choices, just because the barrel roll is a classic "barnstormer" sort of maneuver. To me it just feels better in a biplane, but then I'm biased...

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