Quote:
Originally Posted by swagon
... and to answer OP's question, we don't know yet where the sound deadeing was removed. I guess somewhere between the engine and cabin.
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What we know is from the M2 Technical Training Manual (page 15):
3.3. Interior
Various insulation materials were omitted in the area of the interior in order to reduce weight. As a result of this omission of insulating material, it was possible to achieve a weight saving of approx.
11 kg / 24 lbs compared with the F22.