> That's very informative, I didn't realise the whole horizontal stabiliser itself can be a moving part On most, if not all, supersonic aircraft they are like

> That's very informative, I didn't realise the whole horizontal stabiliser itself can be a moving part On most, if not all, supersonic aircraft they are like that. It was found that the traditional design didn't work well at supersonic speeds, there is debate as to who developed it but the Miles M52 is a likely candidate. I've had a quick look for a decent video demonstrating it. This one shows it fairly clearly in the 5-10 second segment. https://www.youtube.com/watch?v=AFk7kEQ5tVo https://www.youtube.com/watch?v=AFk7kEQ5tVo