There may be some confusion here between VAT and Income Tax.
One can, quite legitimately register for VAT whilst training and claim back the VAT. HM Revenue & Customs will expect to see a business plana dn part if this business plan will be that you intend to be self-employed after training. If not, then you may have to repay the VAT claimed back.
Therefore, in the original post, where it is talking about claiming back tax and expenses provided there is a job at the end of it, we cannot be talking about VAT. Therefore, if it is Income Tax then I'd be surprised since I do not believe that Flying Training is one of those qualifications for which tax relief is available. It was abolished I think, of all people, by Norman Tebbitt.
You MAY be able to do it again, if your intention is to be self-employed/freelance after qualification but I would imagine you would need a specialist accountant not just a b0g-standard one like me!!
Seriously, if anyone can post any links or information about this, I'd be grateful because at the moment I am very sceptical about this.
Cheers
Whirls