"Since when do you need a reason to put a radial engine in something?" Maybe to increase the balloon's MGTOW so it can lift Hans' extra weight? Hehe.
I am in agreement with Chuck. Don't need a reason. Methinks my house could use an R4360 on my rooftop as a Christmas decoration pulling Santa's sleigh.
And I am wondering if there is an STC to re-engine my 152 at the flying club with one???
I'm loving this series, fellas!
RC