Guys,

I think the smallest turbine in production is called Nanojet T32 Kolibri, and is availaible at:
http://www.lambert-modellturbinen.de...riebwerke.html

Nanojet T32 Kolibri Price 2436 Euro

lengh: 120 mm Masse: 185 g
thrust: 15 N (1,5 kp) at 243 000 1/min
compression ratio: 1:2,2
for planes up to 1,5- 3 kg.
weight: 750g, including pump and gear.

Yann