What's the conversion efficiency with a Cessna 172's ancient engine though? Batteries don't have to get that much better for electrics to dominate the training

What's the conversion efficiency with a Cessna 172's ancient engine though? Batteries don't have to get that much better for electrics to dominate the training GA market. There's a Pipistril Velis Electro[1] that shares a hanger with my flight school. It can only fly for about 30 minutes + 30 mins reserve with 2 relatively light pilots. If it had a battery which allowed for 2 hours of flight you've now tripled your range - 1.5hours + 30 mins reserve. That would cover all ab-initio training. A battery like the one in the article would expand the range further to cross country capability and/or higher useful load, with the complete reconstruction of a piston engine every 2000 hours gone from the equation. Can't wait. 1. https://www.pipistrel-aircraft.com/products/general-aviation/velis-electro/#tab-id-2 https://www.pipistrel-aircraft.com/products/general-aviation...