well to get to the point, one of my muffler bolts came out durng flight (yep i checked and locktited them the night before) i think my prop is out of balance and will replace it.
my engine kept running despite the muffler hanging off the engine w/ only one bolt (that was very loose). the sound changed (sounded like a 4 stroke kinda), thats how i realized it and landed.

my point is will the engine keep running w/o a muffler, or did i just get lucky? (engine gms.47)



on a different note
does anyone know where i can buy a gws 29mm motor mount (just the black mount not all the other gearbox junk) heres what i need but w/o all the gearbox stuff (http://www3.towerhobbies.com/cgi-bin...&I=LXHUV7&P=SM)