juswonnafly, and everyone else, it looks to me as though you CAN do something about the situation. If you asked anyone in the Inland Revenue, they would tell you that flying instructors cannot be self-employed while working for only one company etc etc. If you read the details that come with a tax return, they tell you that you are not necessarily self-employed just because your employer tells you that you are. So, you are employees. Therefore you are entitled to the legal minimum wage for all the hours you are at work, whether flying or not. And you can't be unfairly dismissed for pointing this out and claiming what's due to you - or if you are you can do something about it.
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Whirly
To fly is human, to hover, divine.