I've never flown a microlight. Would love to have a go, one day. (As well as a million other things I'd love to have a go at!)
So here's my un-informed opinion:
Modern 3-axis microlights are now so similar to modern aeroplanes that I can't see there's much point in continuing to distinguish between them, although I'm sure others will point out some differences. The speeds and performance are similar, the controls are similar. The costs, when compared to modern PFA aircraft, are similar (the cheaper costs which many cite as a reason for microlighting simply don't exist when comparing to the PFA world, except maybe for training where a PFA aeroplane isn't an option).
Flexwing, on the other hand, is a different type of machine. Just the same as helicoptors are different to gliders which are different to aeroplanes which are different to baloons which are different to airships.... you get the idea. We all try to welcome every type of aircraft into aviation, but there are differences that we need to be aware of. I believe that flexwings like to make very steep approaches (by aeroplane standards), for example. This isn't a problem in itself, but might be a problem if flexwings are flying in a busy circuit where other pilots aren't aware of their requirements. Basically, it comes down to education - no reason why we shouldn't all be able to fly together, but we must all know what each other is likely to do so that we can all stay safe.
As an analagy, I remember the first time I shared an airfield with an airship. It was very scary, simply because I didn't have a clue what the airship was doing. Fortunately, the airship crew was very experienced, and stayed out of my way (even though they had right of way), and everyone remained safe. Now I've got a good idea of the requirements of an airship in a circuit, I'm much safer around them.
Now let's hear from someone who actually flies these things and understands them!
FFF
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