Aircrafts can be with undercarriages.Logical formLearned from2 sentences. An undercarriage may be fitted with wheels.Logical formLearned from2 sentences. An undercarriage may retract into wings.Logical formLearned from2 sentences. An undercarriage can be three-wheeled.Logical formLearned from2 sentences. An (undercarriage layout) can be fixed.Logical formLearned from2 sentences. A wing can be with undercarriage.Logical formLearned from2 sentences. A difference can be an undercarriage.Logical formLearned from2 sentences. An undercarriage may undergo a use.Logical formLearned from2 sentences. An undercarriage may retract rearwards.Logical formLearned from2 sentences. A (tricycle undercarriage) can be actuated.Logical formLearned from2 sentences. An undercarriage may have wheels.Logical formLearned from2 sentences. A shape may pertain-to an (undercarriage bay).Logical formLearned from2 sentences. An undercarriage can be non-retractable.Logical formLearned from2 sentences. An undercarriage can be tricycle.Logical formLearned from2 sentences. A weight may pertain-to an undercarriage.Logical formLearned from2 sentences.