redline
For a given airplane, the airspeed above which it is unsafe to fly. Redlining the plane may over stress or even damage structural elements in the plane ...
VNE: never-exceed speed, ‘redline speed' denoted by a red radial on an ASI.
VNO: normal operating speed. The maximum structural cruising speed allowable for normal operating conditions (top of green arc on ASI).
This is not an essential step, but it might prevent the engine RPM from going beyond redline.
Do not pull on the yoke at all.
This engine is generally remarkably smooth, turning only 2,200 rpm at redline. 'Leaky Jake' might be a more appropriate moniker.
Your airspeed for descent is somewhat limited by the Vne redline, Vno structural meeting of green and yellow, and Va manoeuvring in turbulence speed in the POH. Do not extend flaps at any of these speeds since allowable G-load is much lower.
I usually leave myself a little leeway so that a quick jab of left pedal won't spike me past redline (even though there is a margin, I don't like to use it). If N1 topping causes an RPM decrease, lower the collective to maintain maximum rotor RPM.
With the proper combination of just two controls, any air-plane can be flown at any practical speed--from just above its stalling speed to just below its design maximum or redline.
In fact, although the MiG-15 did have some handling quirks and, could, in principle, exceed flight limits in a dive, its airbrakes opened automatically at the redline limit, preventing it from going out of control .
 See also: Aircraft, Pilot, Speed, Climb, Flight
  
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