Randy MacKenna wrote:

If the foam is sprayed on to the tank during assembly, then maybe a
sub-surface Kevlar netting that is integrated into the application of
the foam would help. The netting would be below the surface of the
foam layer (thus eliminating any aerodynamic issues), and it would be
able to help 'hold together' the foam.

I guess it depends on why the foam breaks off to begin with. At those speeds,
if the foam breaks off, the netting may not be anywhere near strong enough to
keep the foam piece from being blown away.

My gut tells me they need to find some more flexible material that doesn't
crack when bent/vibrated.