the overspeed warning or “clacker” is not in itself an exceedance but intended as an alert that one is impending. There is no requirement to make a tech. log entry unless IAS exceeds 360kt or IMN exceeds 0.84.
Interesting indeed. That is certainly not the attitude that my company takes.
Does anybody know the actual process the NG was certified under. Ie did they take the machine out flying and observe characteristics at high speeds or did they use computer modelling or did they just use existing figures from other models?