Originally Posted by
Lonewolf_50
As above, I went back to an older thread where you cited "Flying the big jets" and am happy with the "9000-14000 fpm RoD" for a heavy. It at least puts a boundary on my question, which is good enough.
For my taste these figures seem a tad too low for an A330 @210t.
Light GA Aircraft usually spin at a vertical rate constantly surprisingly close to 6000ft/min. You can see that in most accident reports of NTSB where a light GA Aircraft spun to the ground.
Wing loading of these tends to be around 100kg/sqm.
Drag rises roughly to the square of the speed.
so 4 times the wing loading should give very roughly twice the RoD. Looking at the TU154 we find that it had a wing loading of ~400 kg/sqm. RoD prior to impact given by the accident report was ~12000 ft/min. So exactly as could be expected.
In our given case the A330 had a wing loading of ~580 kg/sqm. That would result in ~14500 ft/min at S/L and ~20000 ft/min at altitude.