Round the World in Seven Days, by Herbert Strang. From the Project Comments:
Lieutenant Charles Thesiger Smith flies a teeny aeroplane around the world. Meets natives who attack (repeatedly).
This is the first book I’ve “fostered” to another PPer. I like PPing, but my stack is just getting too tall. Thanks to Sankar Viswanathan for doing the Post-Processing of this book! And thanks to Bill for making the illustrations so pretty.