Nubian wrote
If you look careful at the picture, you can see enough of the ASI needle to make out that the 76 is at great speed.
I disagree a bit. If you look at the Torque gauge, its at around 60% (S-76B) so its not that fast and even though we can't see, at that altitude, there wouldn't have been enough ROD to bump the speed up to "great speed" levels.