Magnum XL 52 vs OS FS-48 Surpass
I run these engines head to head. Both have nearly the same amount of run time on them. Both are turning the exact same prop, an APC 12x6 and drinking the same fuel Morgan's Omega 10%. Please check out my Blog pages http://www.rcgroups.com/forums/member... http://www.dmrcflyr2.com/#!blog/k40vr And my website http://www.dmrcflyr2.com/
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