| Answer | Crossword Clue |
|---|---|
| overflights | OVERFLIGHT, a passage over an area in an aircraft |
| overflight | a passage over an area in an aircraft |
| slot | passage through the wing of an airplane or of a missile that is located usually near the leading edge and formed between a main and an auxiliary airfoil for improving flow conditions over the wing so as to increase lift and delay stalling of the wing |
| thermograph | An instrument that produces a trace or image representing a record of the varying temperature or infrared radiation over an area or during a period of time |
| thermographs | An instrument that produces a trace or image representing a record of the varying temperature or infrared radiation over an area or during a period of time |
