@teslakana  
ignore the last part of my previous comment, apparently I can’t edit it out.

@Ivan_Yuri  
someone apparently did the math and and calculated that Rainbow Dash was pulling 1600+ g-forces at the time. If you use the graphics shown in the episode, she’s not just flying at supersonic speeds, they’re hypersonic. That’s right, little Dashie can fly at five times the speed of sound, which means, if this video is correct and the sonic Rainboom doubles Rainbow’s speeds for the duration, that she is pulling that turn at ten times the speed of sound, or 3397.5 meters per second. If we follow the math formulas from the before example that gives us 166405.15 g-forces. If this is correct, then Rarity deserves one just for surviving.

@teslakana  
I dunno?
 
I guess, figuring that Dash has canonically gone super-sonic (yet not multi-mach), and she’s got the small wings, I’m figuring that she’s like a delta-winged interceptor; Sweetie Blitz here, with the larger wings, I’m figuring would have the speed and acceleration aspects much more relatively similar to, say, a Jumbo Jet in comparison - only in the speed/acceleration/velocity aspects. I haven’t the slightest how maneuverable Sweetie Blitz would be (although, since Dash also has the relative maneuverability of a Delta-wing…).

@Ivan_Yuri  
@Techy Pony
 
How fast do we reckon Sweetie Blitz here can fly anyways?

@Techy Pony  
whereupon a larger, longer wingspan tends to allow for the “aircraft” to not stall out at lower speeds, at the cost of not physically being able to pass a certain speed threshold without damaging/crippling the structural integrity of the airframe.
 
Sorry, nerded out there for a moment, I’m studying to become an Aerospace Engineer and got a change to geek out…

@Lemonjack  
Faster “aircraft” tend to have smaller wings, less drag.

Why are Dashie’s wings so small here? She’a not Scootaloo.
 
That is one fabulous looking mare though.

Don’t fret Dashie you are still a million times better than that mare :)  
…you might wanna hide those small wings though so we don’t see your weakness

Her wings are bigger than mine.