In reply to silhouette:
Carried a rope, full set of draws, a jumar, gri gri, slings, etc... from stanstead to Zaragoza in hand luggage last November. Stopped at security on the way back but when I showed them what it is they seemed fine. I did wonder if I would end up having to pay for it to go into hold. I’ve taken rope / draws in hand luggage to Germany and Greece last year and I had to open my bag at security on one occasion in the uk, as the draws looked like a chain on the X-ray. Again happy when they saw it was Climbing gear.
Haven’t tried trad gear yet, and I thought the jumar maybe pushing it, as if anything looks like a knuckle duster it’s that.
So either I’ve been lucky a lot of times or it’s ok. So I will continue to take it in hand luggage.