I should elaborate a bit.
VA speed is that where full deflection of a control surface may induce structural failure. In game, this is represented by the groaning sound you may hear when pulling out of a high speed dive, or maneuvering at very high speed.
VSO speed is that speed where the plane will not long fly dirtied up for landing. Before you get that slow, the stall warning will begin an audible noise, increasing with the decrease of speed until it does stall and you splat it on the runway.
VFE speed. Since AH doesn't model flap damage, this is not dangerous in game, Still knowing the speed where you can begin deploying flaps is handy in low speed fight. Go too fast, and they just blow back up.
VLO speed, kinda important if you don't want to rip off the gear once lowered. You can't lower them above VLO in game, so you can't break them on lowering. You can break them if you increase speed once down.
VNE speed effect in game is dependent what you fly to some degree. In AH, your proximity to the ground is an important factor towards wing failure. However, many aircraft can suffer control surface damage at higher speeds. Learn your aircraft offline....
VX and VY speeds are handled very simply by engaging autoclimb....