i had an rcs 140 in my world models extra . and it was light !!
it worked ok . but not what i was hoping for in the power dept,
i like lots of spare power, this motor just didnt do it for me ...
ran nice though !!! depends on the type of flyin you do and the weight of your plane ... ive since put my trusty ys 140 L in it and its a MONSTER AT A LITTLE OVER 10 LBS.



ive got the creek hobbies KATANA looks nice and light .
it will get a 140 L ALSO ..