Originally Posted by Atomic Skull
It looks like there is very little difference between the Swift 550 carbon and the Swift 620,even the frames look very nearly identical. Is the 600 frame really the same size as the 550's?
What parts are different between the two?
The 620's frame has a larger opening for the gears (among other differences) - this allows a double stack for the main gear if running with a pack larger than 6S (the longer pinion would then be needed). The boom is longer, obviously on the 620, and it uses the metal tail case, which has since been discontinued (makes me sad). The 620 has all metal head and tail, where the 550 carbon is only partially metal.
If you download the manuals for both you can compare and see the details and differences more clearly. Many of the parts are similar however.