Hello there. I have just registered, so hi to everyone. I am 52 years old with CF and use 2 litres of oxygen at rest. I may have the opportunity to come to the USA for six weeks to learn to fly light aircraft with a UK based charity flying scholarship scheme. Can anyone help with where I can go to find out about a supply of oxygen whilst I am there? I use liquid oxygen, cylinder oxygen and a concentrator at night. Cost is a factor I am afraid as my annual income is about £12,000 ($16,000). Thanks, Graham (West Sussex, England)