have any of your planes ever dropped out of the sky or failed to take off?

Question: have any of your planes ever dropped out of the sky or failed to take off?
- Keywords:
  failure,
  research,
  technology
Asked by Megan D to Katie on 11 Nov 2014.
- Katie Mahon answered on 11 Nov 2014:
  
  No thank god 🙂
  I spent 9 months work experience in AIRBUS in France, they make a whole range of planes including the double-decker Airbus A380. As I was only a student I wasn’t responsible for designing any airplanes! But I got to see inside the test aircraft, and I saw what a huge team of people & how many years of work go into designing, testing & building an airplane before it goes into service by the general public.

Question: have any of your planes ever dropped out of the sky or failed to take off?