Number 10. BELL H-13 SIOUX was a two-bladed, single engine, light helicopter built by Bell Helicopter. Westland Aircraft manufactured the Sioux under license for the British military as the Sioux AH.1 and HT. In 1947, the United States Air Force ordered the improved Bell Model 47A. Most were designated YR-13 and three winterized versions were designated YR-13A. The United States Army first ordered Bell 47s in 1948 under the designation H-13. These would later receive the name Sioux. The Bell-built H-13 B is seen airborne in this April 29, 1951 photo. The helicopter is equipped with a 173 horsepower engine, cruises at 85 miles per hour, climbs 900 feet in a minute and has a service ceiling of 11,500 feet. (Photo by AP Photo)

People rollerblade along the beach a day before renewed restrictions due to a surge of coronavirus disease (COVID-19) cases in Los Angeles, California, U.S. November 29, 2020. (Photo by Brandon Bell/Reuters)

Secondary school graduates play in a fountain as they celebrate the last day of school, traditionally called the “last bell” in central Kiev, Ukraine on May 31, 2019. (Photo by Valentyn Ogirenko/Reuters)

A Sri Lankan activist, who wrapped himself with fire crackers, walks in Colombo on July 23, 2014 to symbolically demonstrate against people burned during Anti-Tamil riots on the island thirty-one years ago. Official accounts placed the death toll at 400 while human rights activists put the toll at thousands. (Photo by Ishara S.Kodikara/AFP Photo)

Lightning strikes as smoke billows following an Israeli airstrike in Gaza City on October 9, 2023. The death toll from the unprecedented assault by Palestinian militant group Hamas on its territory rose to 900 in Israel, which has retaliated with a withering barrage of strikes on Gaza, raising the death toll there to 687. (Photo by Mohammed Abed/AFP Photo)

Festival goers arrive for the Glastonbury festival at Worthy Farm, in Somerset, England, Thursday, June 23, 2016. (Photo by Guy Bell/Rex Features/Shutterstock)

Students in Aone’s elementary school during break in between the class on April 9, 2015. The school has only six students, two of whom are from the same family. Similarly small schools can be found throughout Japan. (Photo by Ko Sasaki/The Washington Post)

A demonstration of Extinction Rebellion in Amsterdam, the Netherlands, has been dissolved by the local triangle (police, judiciary and mayor), February 26, 2021. About eighty activists, some of whom scantily dressed, blocked the Overtoom in Amsterdam-West. About twenty of them do not want to leave, they are taken away elsewhere. (Photo by Koen van Weel/EPA/EFE)