Grob 2C

[Lumps]

Does anyone out there have more detail on the power plants on this aircraft - as far as I can tell it was powered by two TSIOL-550s (what is the L for?) turning large 6m diameter props (must have been geared, but no GTSIO) and both piston engines were fed by the gas generator of a PW127. How did this work?

Why not a couple of PW127s as normal turboprop installations - what is the advantage of piston / turbine hybrid?

What sort of CHTs would you get at 60,000ft! I thought it would be beyond normal piston engine metallurgy.

[Denti]

There is quite a lot more info on the german wikipedia page about why a piston engine was chosen.

[His dudeness]

Since the wikipedia article talks about big coolers for water cooling mounted in the cowlings, the L might mean Liquid cooled ?

Thats the link to the article:

Grob G 850 ? Wikipedia (http://de.wikipedia.org/wiki/Grob_G_850)