RC Submarine Syringe Piston ballast (I will use it for the 1/144 U-boat VIIC-41)
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Syringe Piston Ballast Motor Replacement (from RPM50 to RPM300)
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Comment les sous-marins de la classe RC plongent-ils? Système de plongée Construction (Français)
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RC Submarine Piston Ballast (60cc Syringe)
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Building and Testing a Lego-powered Submarine
12:48
Type VII C/41 Atlantic Version U-boat (Revell 1/144 scale submarine model)
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RC Ships in BIG waves | MEERZEIT Büsum! ⛴
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Matze baut ein Typ XXI Modell U- Boot, Teil 2 - Der Tauchtank
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