Elad, This is getting scary, but I agree with Bill, here, too. When I was a kid, flying control line stunt, a Fox 35 was was a good engine. That was 40 plus years ago. I don't think they have kept up with the times. I'd suggest putting it on a test stand and run it up. If it works well, find an airframe and install it. If not, just add it to your collection.
ORIGINAL: William Robison
reDeal:
I don't like Fox engines, but a lot of people do. That 0.19 is probably fitted with a lapped piston, and as such it requires castor oil in the lube. I have to admit, with proper lubrication and no mistreatment you'll never wear it out. But I don't like Fox engines. A lot of people love them.
Being honest about it, I thought Duke Fox was one big rectum, and even so I have run many Fox engines. But not happily, only when they were the best engines for the job.
Use your 0.19 on a properly sized sport plane, you'll be happy with it.
Bill.
PS: I don't like Fox engines. Haw. wr.