I read the first two dozen Hardy Boys Mystery books when I was a kid.
I don't remember them having access to an airplane back then.
Their friend Tony had a motorboat.
That series, and my sister's Nancy Drew stories, started me on a love for reading that has not quit.
If the latest stories involved an airplane, you can bet the airplane was constructed and maintained by a diverse crew and built from recyclable products and it ran on air and water only.
'97 Country Coach Intrigue