We have two Charlie models and one Bravo model.
We plan on 80 litres per hour but can get that figure down to 65-70 with a corresponding TAS of around 140-145.
A lot of people aren't too keen on the Partenavia because of it's slower speed but to operate over a 250 mile leg one would take 1.8 hours in the PN68, compare that to a Baron for instance and you are looking at 1.4 hours. They both operate with a similar loading capacity.
For fuel that works out around 135 litres for the PN68 and about 170 litres for the Baron.
Anyone can do maths and it may not seem like much. Do that leg return four times per week for a year it works out $32,000 extra in fuel. (ouch)
PN68 (C) has an excellent range as well. (about 700 miles)
The reason more people aren't using them=
Terrible maintenance support. Ring Vulcan air and ask for part XYZ, they will tell you that part XYZ does not exist. Because they re numbered all parts and re structured the parts manual about 15 years ago. (Which is extremely helpful, let me assure you).
They are a good horse and have got me my 500 multi.
