I am a retired airline pilot with a total of a little over 13,000 flying hours, 5,000 of those in command, almost all on big jets, acquired over 30 years. Since 1972 I have been a technical representative at company, national and international level. Since the mid-'80s I have specialised in air traffic management subjects. Apart from my experience as a pilot, I have a scientific background with training in electronics, telecommunications and computers. I have written and sold software to major companies.