guys, I'm really starting to become worried about the ongoing communication and the fact that nobody ever bothers to look at the information presented.
Please allow me to spell it out for you directly from the manual and give you an explanation on fuel consumption.
fuel flow at cruise speed 108 knots 3.6 US gph (13.6 l/h)
fuel flow in circuits 2.5g US gph (9.5 l/h)
These details are clearly listed on the website and in the information pack and in the flight manual and a real figures. The fuel flow in circuits based on my experience is closer to 8.5 litres per hour instead of 9.5 litres per hour. It must be remembered that the Pipistrel ALPHA Trainer is extremely clean, it has no wing struts, no rivets nothing else in the air stream which can slow the aircraft down by creating drag. This design is based on a glider and pretty much the whole circuit from mid downwind is performed with the engine at idle so even though you are using full power for take off and climb to 1000 feet AGL the moment you are on mid downwind the rest of the circuit is with the engine at idle, with the engine at idle and at neutral flap the aircraft has a glide ratio of around 20 to 1 so it is easy to see that the aircraft can achieve and does achieve the quoted fuel flow figures.
Can we now please put this issue to bed.... many thanks Michael
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