By way of an update I was able to sail Velox for the first time last Saturday. She performed quite well and was able to steam at a reasonable speed once boiler pressure was up to about 30psi. I still have to work out the setting for the burner to ensure adequaite boiler pressure is maintained as otherwise she slows down a bit.
I had some problems with the throttle linkage which flexed too much and left me with astern power only at one point, but this should be simple to resolve.
I got half an hours sailing out of one bolier full which was less than I hoped but I still have to get all the settings right, but a reasonable start.
My main concern was an angry Swann but it seemed more interested in attacking the ducks as I guess they represmnted more of a threat but I was still quite careful!
I'll try to attach some pictures now.
Cheers
Geoff