Actual smoke would be known as exhaust.
The lines in the sky that follow a high-flying jet, however, are known as condensation or "con" trails. They are not smoke but condensation in the atmosphere caused by the disruption of the air by the airplane's passage.
There does not appear to be another name for a pigs tail. A pigs tail is typically short and curly.
Another name for a tail fin is a caudal fin. It is the fin located at the end of a fish's body, which helps with stability and propulsion.
all of the Australian planes were blue or yellow with a bright red tail
Yes
White smoke coming from your tail pipe often indicates an issue with your coolant. The smoke comes from burning coolant. The engine sputters and white smoke is likely an issue with the head gasket.
the black box is in the tail of all public planes
White smoke indicates a blown head gasket, the smoke is coolant burning
No! there been even worse ones like planes exploding. The tail falling off planes then the plane crashes. Planes braking apart on the runway.
The Irish national airline Air Lingus uses airplanes that are green on top and tail. Iraqi Airways is another airline which has traditionally used green in their livery.
Unburnt fuel
Empennage is an aviation term used to describe the tail section of an aircraft. The empennage is also known as the tail or tail assembly; all three terms may be interchangeably used.
Cats tail - and good luck with the Telegraph crossword!