Vince
I am struggling with this fuel issue. From reading this thread you intended to fly from Damyns Hall to Barrow and onto Kinloss. I have not done a flight plan but that seems to be around 450nm. The CT has a range of 800nm at 125 kts (correct me if I'm wrong). Barrow is about mid-way, so when you checked your fuel before departing you said you had 50% more than required. So with 45mins reserve you had 25 litres (usable fuel). Dundee is mid-way 100 nm or so, and you used 25 litres. At 125kt cruise and 12 l/hr you used more than twice the fuel expected.
Was the aircraft full when you started the trip, 130L? Why depart Barrow with 25L of a 130L tank? I dont understand running out of margin, what does this mean, the margin is 45 mins reserve ( 90 nm) is it not?