OS FS 52 Surpass. Service And Testruns.
This is just a short video of another OS 52 four Stroke. I did a previous video of a similar engine with more detail. This engine is still new and it doesn't look like the plane it was on has ever flown. The engine was run but from the internals, you can see that it has not been ran much. I replaced the bearings and o - rings and with some more running in time, I think she will fly well.
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