project GrontmijToday Delft Dynamics has taken photos and infrared video of reed beds at the Zwartemeerdijk in the province of Flevoland with the RH4 'Spyder' multicopter, commissioned by Grontmij and Rijkswaterstaat. Weather conditions were fine. It was dry, visibility was good, there was little wind. In total the multicopter took photos and video of more than a kilometer of reed beds. The recording was performed in three flights. One at a height of ten meters, one at twenty-five meters and a flight with an infrared camera. Rijkswaterstaat and Grontmij were very excited about the test.