Following the 1 February 1953 North Sea flood, helicopter crews who participated in the rescue effort were invited at Queen Juliana's palace. Sabena's OO-UBB and the sole Dutch helicopter at the time, the navy's 8-1 (H-1) are seen. Nine American Bells also landed on the lawns and five British helicopters on a nearby football pitch. One 'very large American helicopter' landed at Soesterberg airbase. It is safe to assume the event was Prince Bernhard's idea. Photo by: Daan Noske / Nationaal Archief (Netherlands)

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