BAE146-200QC heading to Australia ?

You had to go one step further! So, got my pencil out and you are correct, only 5 QC’s made. The RAF have two of these which are probably s/n 2211 and 2188. 🙂

only 5 different serial numbers ?

I read that as well and thought I would check it before telling you that, it is wrong! 🙂

http://www.airport-data.com/search/search2.html?field=model&search=Search&code=British+Aerospace+146-200QC

on second look at that list, there are only 5 different serial numbers. Some have had lots of different registrations.

maybe somae are conversions

from passenger aircraft ?

I read that as well and thought I would check it before telling you that, it is wrong! 🙂

http://www.airport-data.com/search/search2.html?field=model&search=Search&code=British+Aerospace+146-200QC

146-200QC’s

read there were only 5 QCs built.

Think RAF has 1, so where are the other 3 ?

You’re nearer than me, yes, probably that one unless it has already gone? 😀

What, this one?

One candidate might be G-ZAPO, c/n 2176 which is stored at Kemble. This may have had a previous history as VH-NJQ. 😉