A (taildragger undercarriage) can be retractable.Logical formLearned from2 sentences. An undercarriage of locomotives may be painted in black.Logical formLearned from2 sentences. An engine may power an undercarriage.Logical formLearned from2 sentences. A blade may be attached to an undercarriage.Logical formLearned from2 sentences. An undercarriage can be elevated.Logical formLearned from2 sentences. An (undercarriage leg) can be on public display.Logical formLearned from2 sentences. A track may pertain-to an undercarriage.Logical formLearned from2 sentences. (Main undercarriage units) can be four-wheel.Logical formLearned from2 sentences. An undercarriage may undergo lowerings.Logical formLearned from2 sentences. An undercarriage can be rugged.Logical formLearned from2 sentences. Biplanes may be fitted with undercarriages.Logical formLearned from2 sentences. Others may sustain damage to an undercarriage.Logical formLearned from2 sentences. An undercarriage can be black.Logical formLearned from2 sentences. An undercarriage may pertain-to trucks.Logical formLearned from2 sentences. A block may be placed under a center of an undercarriage.Logical formLearned from2 sentences.