Ofcourse an UB has more drag vs singel version, my point was not a whole lot.
And from some view, the UB looks draggie due to the elevated cockpit, but i tell you, due to the breakup of the air vortices that feeds into the wings(blended wing/body design) And add the High(er) body lift. The Su-27UB Rocks.
Lets just forget about anything regarding ‘Top Speed’ here.
Cause fighters never go there anyway.
Lets stick in Subsonic as you say.
Granted, the two aircraft were to do the very same manuveres, The Flanker design has better aerodynamic turn n burn, IMO it loses less energy vs F-15 in lower speed regime.
But if you where to compair an F-15B vs Su-27UB, i’ll take the UB thank you very much.:)
We’re not comparing F-15 and Su-27, but the increase in drag caused by the second seat. And here it is very clear that the Su-27 to Su-27UB conversion adds much more compared to most if not any other fighter. The F-15 is just an example where you can see a slight performance decline.
But its a design choice, they wanted a trainer with good forward view for the guy in the back, thats what they got, but the price is drag.
And while top speed isn’t very important, it nicely illustrates the drag increase 😉
Now, back to topic…
… will there be a J-20 two seater and will it have 360° view? 😮
Sign In
