| 摘要 |
The invention concerns an air propeller arrangement (10, 30, 50) for propulsion of a fixed-wing aircraft (8), said arrangement comprising a first air propeller (11, 31, 51) that comprises a first hub member (15, 35, 55) and at least a first and a second propeller blade (13, 14, 33, 34, 53, 54), said first and second blades (13, 14, 33, 34, 53, 54) being configured to contribute significantly to said propulsion and having a substantially equal length, wherein each of said blades (13, 14, 33, 34, 53, 54) has an inner, root end (17, 18, 37, 38, 57, 58) arranged at the first hub member (15, 35, 55) and an outer, tip end (19, 20, 39, 40, 59, 60) positioned at a distance from the first hub member (15, 35, 55) such that each blade (13, 14, 33, 34, 53, 54) extends in a radial direction from the first hub member (15, 35, 55). The invention is characterized in that the first and second blades (13, 14, 33, 34, 53, 54) are interconnected at their outer ends (19, 20, 39, 40, 59, 60). The invention also concerns an aircraft (8) provided with such an air propeller arrangement (10, 30, 50). |
