[Lael]

or find a way to reduce or eliminate that ice, and then we can fly again

For what it is worth, I estimate that the BLOCK of ICE, clearly visible as white BEFORE it struck the left wing, as weighing AT LEAST 20 pounds, and more probably 30 pounds, and storing much energy in the form of compression.

The white cloud after impact is NOT insulation, but something MUCH WORSE...FLASH Sublimation of ice crystals with a SHOCK WAVE directed into the interior of the wing.

[XBob]

16 - "For what it is worth, I estimate that the BLOCK of ICE, clearly visible as white BEFORE it struck the left wing,"

Seems like this should be pretty easy to determine, ice or insulation (it sure looked like ice to me) by simple spectrographic analysis of the colors.