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Diesel engines market share in Piston Airplanes market

It's about 5%, very approximately, but might be approaching 10% in the EU. https://www.experimentalaircraft.info/homebuilt-aircraft/aircraft-diesel-manufacturers.php - overall list https://www....
Therac's user avatar
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Are auxiliary fuel tanks optional on the Boeing 737 Max 9?

Aux fuel is optional on the Max 9, but to find out who has ordered aircraft with and without you will have to coax that information from Boeing or the airlines operating them.
Juan Jimenez's user avatar
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