![The Aviation Art on Twitter: "Bell H-13 Sioux by Jaroslav Velc The #BellH13Sioux was a single-engine single-rotor light #helicopter built by #BellHelicopter. The H-13 was used as an observation helicopter early in The Aviation Art on Twitter: "Bell H-13 Sioux by Jaroslav Velc The #BellH13Sioux was a single-engine single-rotor light #helicopter built by #BellHelicopter. The H-13 was used as an observation helicopter early in](https://pbs.twimg.com/media/DoHWjszWsAADXNw.jpg)
The Aviation Art on Twitter: "Bell H-13 Sioux by Jaroslav Velc The #BellH13Sioux was a single-engine single-rotor light #helicopter built by #BellHelicopter. The H-13 was used as an observation helicopter early in
![Bell H-13 Sioux. Vector drawing of light observation helicopter. Side view. Image for illustration and infographics. Stock-Vektorgrafik | Adobe Stock Bell H-13 Sioux. Vector drawing of light observation helicopter. Side view. Image for illustration and infographics. Stock-Vektorgrafik | Adobe Stock](https://as1.ftcdn.net/v2/jpg/04/16/39/24/1000_F_416392411_vM4ncK4wcUnRTnjWoBfnmfYcnd5EPSAA.jpg)
Bell H-13 Sioux. Vector drawing of light observation helicopter. Side view. Image for illustration and infographics. Stock-Vektorgrafik | Adobe Stock
![Bell-H-13-Sioux with stretchers on the helicopter's skids (picture from... | Download Scientific Diagram Bell-H-13-Sioux with stretchers on the helicopter's skids (picture from... | Download Scientific Diagram](https://www.researchgate.net/publication/336617679/figure/fig1/AS:815097370923008@1571345765223/Bell-H-13-Sioux-with-stretchers-on-the-helicopters-skids-picture-from.png)