ORIGINAL: JariV
That video on page 1 of this thread about the Galloping Ghost P51 Mustang rc, what engine does it have ???
Youtube id is 5PnJkBl0Ql8.
I love the sound and it packs quite a lot of punch too.
200ccm 3 Cyl - inline - 4 Stroke (Kolm Engines)
http://www.kolmengines.com
They should be going into production anytime now, as they have been flight testing the engines for quite a while now.