P66 is right it is not on and unless things change, from what I hear, is likely to stay not on without a significant change. If that is your beast in your avatar then you probably wouldnt have got it in to Renishaw anyway! :)Other events around Sheffield? phew, bit thin on the ground. Strictly military only is probably few and far between and some are pure WW2. However, although I didnt get to it myself I'm told the Chatsworth House 'do' was good. There was also a WW2 event billed to run the same weekend as Renishaw over at Clumber Park. Not heard any feedback on that one and haven't looked to see if it is on this year. Many of the local (ish) 'general' rallies/steam etc also have space for a military section and you might get a good weekend or day out there if you dont mind mixing with the general interest stuff. Thinking of Barnsley, Ackworth, Nostell and so on. The biggest pure military up North has to be Elvington in May, but that isnt just down the road is it? If you come across any more list them for us all.
Edit- Belvoir steam fair always has a good military section. Not too far off.
May 30th Burghwallis near Donny - http://www.wwiireenacting.co.uk/forum/viewtopic.php?f=104&t=50523&sid=c9b6afe373a6aa444f93c9d6df825cff
16/17 May Belvoir
13/14 June Clumber (Eventplan)
15/16 August Rufford Park Home front event (Eventplan)
August bank hol Sheffield Fayre multi period event incl.WW2, so maybe a bit more than I first thought.(Eventplan)