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dlberek: J Newton Williams Helicopter Model 1905
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dlberek: Lycoming O-145 - Powered Sikorsky VS-300 on First Flight
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dlberek: First Sikorsky VS-300 Tail Rotor
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dlberek: First Sikorsky VS-300 Main Rotor
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dlberek: Pitcairn PCA-2 Autogiro "Miss Champion" (NC11609)
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dlberek: Cierva C-6 bis (Replica)
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dlberek: Pitcairn PA-39 Autogiro (N3908)
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dlberek: Kellett K-3 Autogiro (NC10767)
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dlberek: Kellett XO-60 (42-13610)
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dlberek: Autogiro Company of America AC-35 (NX70)
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dlberek: Sikorsky XR-4 Hoverfly (41-18874)
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dlberek: Sikorsky VS-316A Hoverfly (43-46503) (NX92820)
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dlberek: Sikorsky YH-5A Dragonfly (43-46620)
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dlberek: Piasecki PV-2 (NX37061)
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dlberek: Hiller XH44 Hiller-Copter (NX30033)
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dlberek: Bell 30 (NX41867) Genevieve
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dlberek: Bell 47B (NC5H) Front View
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dlberek: Bell 47B (NC5H)
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dlberek: Bell 47B (N116B)
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dlberek: Bell 47H-1 (N8010E)
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dlberek: Doman LZ-1A - Sikorsky VS-316B / R-6A (43-45480) (N74146)
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dlberek: Sikorsky HO3S-1 (S-51 Dragonfly) (124344) (N5182V)
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dlberek: Focke-Wulff Fw-330A-1 Bachsteltze (Sandpiper) (T2-4617)
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dlberek: Sikorsky HRS-1 (127828) ('127834')
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dlberek: Westland WS-55 Whirlwind 2 (ZD1B-22)
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dlberek: Sikorsky HO4S-3G (1308) (N16861) (Sikorsky S-55D)
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dlberek: Sikorsky S-51 Dragonfly (RCAF 9603)
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dlberek: Sikorsky S-51 Executive Transport (N5219)
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dlberek: Sikorsky S-52-3 (HO5S-1) (130136)
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dlberek: Doman YH-31-DM (LZ-5) (52-2780)