World's craziest wooden roller coaster: a 720-degree double barrel roll and an 81-degree drop - The Globe and Mail
![LOG / BARREL ROLL: The flyer, starting un a cradle or flatback position, is tossed into a 360° rotation (seen clockzise / antic… | Cheer stunts, Cheer, Cheerleading LOG / BARREL ROLL: The flyer, starting un a cradle or flatback position, is tossed into a 360° rotation (seen clockzise / antic… | Cheer stunts, Cheer, Cheerleading](https://i.pinimg.com/originals/b3/b3/3e/b3b33efb6ba73db2fce32e561c17adf4.jpg)
LOG / BARREL ROLL: The flyer, starting un a cradle or flatback position, is tossed into a 360° rotation (seen clockzise / antic… | Cheer stunts, Cheer, Cheerleading
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![A double barrel roll from a box of height 0.8m with our proposed framework. | Download Scientific Diagram A double barrel roll from a box of height 0.8m with our proposed framework. | Download Scientific Diagram](https://www.researchgate.net/profile/Chuong-Nguyen-7/publication/355205699/figure/fig4/AS:1078861924184068@1634232135435/A-double-barrel-roll-from-a-box-of-height-08m-with-our-proposed-framework_Q320.jpg)
A double barrel roll from a box of height 0.8m with our proposed framework. | Download Scientific Diagram
![A pilot once took up a Boeing 707 passenger jet & did a double barrel roll in the sky - See it here - Click Americana A pilot once took up a Boeing 707 passenger jet & did a double barrel roll in the sky - See it here - Click Americana](https://clickamericana.com/wp-content/uploads/See-that-time-a-pilot-took-up-Boeing-707-jet-did-a-double-barrel-roll-in-the-sky-750x563.jpg)