| Answer | Crossword Clue |
|---|---|
| LUBE | Grease the undercarriage |
| undercart | (colloq.) an aircraft's landing-gear, the undercarriage |
| undercarts | UNDERCART, (colloq.) an aircraft's landing-gear, the undercarriage |
| retracted | Draw (the undercarriage or the wheels) up into the body of an aircraft |
| retracts | Draw (the undercarriage or the wheels) up into the body of an aircraft |
| retracting | Draw (the undercarriage or the wheels) up into the body of an aircraft |
| retract | Draw (the undercarriage or the wheels) up into the body of an aircraft |
| trucks | A undercarriage with four to six wheels pivoted beneath the end of a railroad car |
