Contrails are real - they're not a government conspiracy to spray chemicals (big surprise, huh?!?). But, did you know there are two types of contrails? Aircraft can generate both aerodynamic contrails and exhaust contrails.
Contrails are "condensation trails," and they have nothing to do with chemicals. They occur when water condenses into a cloud - in either liquid or ice-crystal form. Contrails come in two varieties: aerodynamic and exhaust contrails.
They rarely happen, but these are some of the most notable uncontained engine failures in airline jet history.
1) Qantas Flight 32
On November 4th, 2010, a Qantas A380 took off from London Heathrow, bound for Sydney, Australia, with a stopover in Singapore. 4 minutes after takeoff from Singapore's Changi airport, the #2 engine developed an oil leak from a manufacturing defect, which led to an oil fire. The fire then caused the engine's Intermediate Pressure Disk to break. Three pieces of the disk broke off, puncturing the engine cowling and wing, and severing multiple sets of wires in the wing. However, the pilots were able to fly the badly damaged airplane to back to Changi airport and safely land, with no injuries to the crew or passengers.
There are some experiences that no pilot should miss out on. Here are a few things to check off on your pilot bucket list. (Remember to ALWAYS fly with an instructor if you are not properly licensed, rated, trained, or comfortable with a flight activity!)
1) Aerobatic Flying
Straight-and-level flight is nice, but seeing the world upside-down is unforgettable.
While you may never need a complex aircraft rating, it's a worthwhile experience nonetheless. Find a local instructor to try it out. But please, don't forget to lower the landing gear!