Alfons Siemetzki, 7951 Kirchdorf, trading as ASRO, produced and flew 3-T research helicopter (65-hp BMW turboshaft), leading to 2-seat ASRO 4 (100-hp BMW turboshaft), flown 1964.
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AEROSTYLE (1)
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AQUILA (1)
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AVCRAFT (1)
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B&F (3)
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BUSSARD (1)
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C+C FLYING (1)
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COSY (1)
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D'LONG (1)
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DORNIER COMPOSITE (1)
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EXTRA (4)
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FFT (2)
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FLAMING AIR (1)
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FLUG WERK (2)
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GROB (4)
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HIGH PERFORMANCE (1)
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IMPULSE (1)
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OMF (1)
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PCH (1)
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REMOS (2)
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RMT (1)
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SCHEIBE (1)
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SILENCE (1)
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STEMME (2)
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ULBI (1)
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WD (2)
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WÜST (1)
