My newest ARF The Hanger 9 Mini Ultra Stick with electric power.  It uses an E-flite motor (E-480) and controller (40 amp) with 2000mah LI-po batteries from Kokam that can do continuous 30 amp discharge.  All told about 330 watts with 25oz plane makes for lots of smooth power.  FIrst flight went very well with a reasonable breeze (10-12mph) no problem at all.