BPK-S-AA5019-5080 The vertical wind tunnel (Trudel-Windkanal) created by the German Research Institute for Aviation in Berlin Credit: BPK/Alinari Archives WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Photographer: Landshoff Hermann Date of photography: 1938 Place of photography: Germany, Berlin Collection: BPK/Alinari Archives Object type: digital image Photographic technique: P digital image Technical info Image sizes (pixel): 4252 X 5861 Image sizes (cm at 300 dpi): 36 X 49 Image sizes (MB): 2.68 Color space: RGB