Originally Posted by
NutLoose
Definitely silver grey metal in colour about 2 inch by 1/2 inch in size without any external skinning on it. I will photograph it.
Iirc, the skin was made by Hexcel, a firm that lead the honeycomb business and was eventually taken private by Goldman Sachs.
I too have such a small sample of stainless steel honeycomb from them, although my specimen did not have any claims of association with the B-70 program.
My sample is only about 1/4" thick, so clearly a different application from yours.
I do remember the Hexcel people were seriously focused on the challenges of shaping the honeycomb. Airplanes have lots of curves and so the honeycomb has to be trimmed to just the right shape before the skin is brazed on.