Is a flight in an uninsured aircraft actually illegal, or just a very bad idea?
Anyone able to provide CAA / EASA chapter and verse on this?
Only thing I seem to be able to find is on the CAA website, but it's quite difficult to navigate
Mandatory Insurance Requirements | Aircraft Register | Operations and Safety
either way, if he's not insured there's no way he can log P1. Fine for him to physically fly the thing, but when it comes to an investigation after the flight, I'd not want to be the one who'd flown illegally and having to explain why. Nothing illegal about letting a friend have a go while you maintain P1 status, definitely illegal to log P1 for licencing purposes when you have no right to do so.