I'm familiar with those! They're cool!Must not have had Coffman Starters on those.
(Coffman starter is the type of starter we got the phrase "Shotgun Start" from. Literally starting an engine with a shotgun shell).
https://www.theautopian.com/some-pl...s-and-its-exactly-as-cool-as-you-think-it-is/
I've also used the hand-crank inertia starters. You crank em up to speed by hand, then you pull a T handle to engage the starter....
I fkn LOVED working on those old radial engines!