I believe the Baby Deltic featured quite high in the 'polls' for diesel classes yet to be mass produced by a model manufacturer. With there not being many classes left to do coupled with the availability of decent archive drawings then the options become very limited. As we know Heljan are well known for getting as much out of their tooling as they can so I would imagine that we will see at least four livery variations on the refurbished bodyshell. As long as it sells, and remember almost 40% of the purchases will be by collectors, then the prognosis for an early version looks good. I think Heljan should be congratulated for taking the risk of pleasing those that will consider buying this model.
I for one was fortunate enough to travel behind and photograph these locomotives, see my gallery, and yes there were complaints from the public about them and that is one of the reasons that they eventually got banned from going down to Moorgate. I can remember in my early commuting days into London it was certainly a case of keeping the windows closed! Although fairly reliable in refurbished form they were high cost locomotives to run due to the contractual arrangements between BR and English Electric which involved works visits to Doncaster or Stratford for power unit repairs.
But in producing a model we are also trying to replicate the past and today us modellers have never had it so good as far as variety and choice is concerned. Once we can master the sound chip for these then we must have a smoke unit for complete authenticity, complete with oil carryover and unburnt fuel odour, lovely! What we need to go with them are some more green 31's, how about it Simon?