Out of over 7,000 orders for the 737NG only 69 737-600s were built. Really, you’d only want it for commonality if you already had the larger 737NGs, as it had issues common to most shrinks – it was too much of an airplane for the job. In fact, the series 600’s primary claim to fame is probably helping to kill off the superior, but orphaned, Boeing 717 (aka MD-95).
Many of the 737-600s built have had short careers and, like the similarly unloved A318, many have been scrapped after only a decade or so (sometimes less). That means there isn’t a large pool of secondary operators either as on the seconds market airlines are better off picking up 737-700s and A319s (and even they are nowadays almost worth more as spares).
Anyway, onto the (short) list:
A near certainty I’d have thought is China Southwest Airlines whose 3 aircraft went to Air China:
Other primary operators are well outside of Panda’s usual geographic range but there’s no point in creating a new mould if you’re not going to use it (is there Gemini?). So we have:
On the secondary market there are not many contenders. In fact, the only ones I can find that are worth doing are:
And that is that. Not a great return for a mould but it is good to have more obscure models of airliners covered in 1:400 too.
I'm Richard Stretton: a fan of 1/400 scale model aircraft and airports. This blog reports work on my model airport dioramas and discussion of the model manufacturers output.