I'M NOT FAMILIAR WITH THE DA50, BUT IF ITS A 50CC ENGINE, THAT WONT GET A ZIROLI STUKA OFF THE GROUND. I OWN A ZIROLI STUKA 29LBS. AND ITS POWERED WITH A G-62 WHICH FLY'S IT VERY SCALE ON A MEZJLIK 22X10 3 BLADED PROP. ITS FAR FROM ANY SPEED DEMON. THE STUKA IS EXTREMELY DIRTY. WITH ITS FLIGHT CONTROLS HANGING BELOW THE WING, DIVEBRAKES HANGING UNDER THE WING, AND HUGE SPATZ, NOT TO MENTION LOWER HORIZONAL STRUTS. IT TAKES ALOT OF HP TO GET THIS BIRD FLYING. ALTHOUGH, I WILL ADMIT THAT STALL SPEEDS ARE QUITE LOW WITH NO BAD HABITS, BUT ITS STILL A 101"W/S. THIS IS A LARGE WARBIRD. I JUST DONT SEE 50CC'S CUTTIG THE MUSTARD.