I have a new DA 100 installed on a 35% Edge 540

Never had one of these engines before, I have a Mejzlik 27x10 prop.

Question is: the prop stud seems to be too short as it does not fully penetrate the prop hub. I can mount the prop because it's a 6 bolt hub but, as I say the centre stud (crankshaft) is not long enough to come through the prop hub and front mounting plate. Is this normal?

The ZDZ 's that I have, the centre stud penetrates the prop washer and is in fact threaded for a nut for added security. The DA set up doesn't seem very safe.

The Mejzlik is not a thick hub as far as props go so, I don't think that that is the issue.

Any comments please

Thanks

Mike