ORIGINAL: dhal22
OPS is now selling a .90 and a 1.20 rear exhaust engines. with both turning over 24,000 rpms they aren't for beginners. here is a photo of the marine version (shipped incorrectly) i received recently. the air version looks even better. i'll try to find a photo.
That picture looks like something that belongs in a nuclear reactor. Nice. Who the heck is OPS?