However , this process trapped heat and moisture , resulting in numerous airframes being damaged by this process ( primarily the avionics and instruments ) .
A vast majority of the B - 29s were stored by a new process of cocooning .
This process trapped heat and moisture , resulting in numerous airframes being damaged by this process ( primarily the avionics and instruments ) .
A vast majority of the B - 29s were stored by a new process of cocooning .