The ME-109 had a design problem which was a primary factor in the German loss during the Battle of Britain, what was it?

The Me-109 had a terrible range and was barely adequate for the operations required of it. It could only fly for 80 minutes, therefore, with the amount of time it took to fly back and forth(English channel) it only had a maximum of twenty combat minutes available causing many planes to run out of fuel and crash before they could get back to France and land.

good answer mozart, yes the ME109 only had 20 minutes of fuel while over Great Britiain to defend their bombers. The lack of an auxiliary fuel tank or drop tanks was probably the most important factor in the German loss of the Battle of Britain.