Steve, this is my best reference to your fabric question.
Keep in mind that some of the early or later versions may have been different but the B/C models are represented here. This may have also varied based on intended destination or leasee.
EDIT: Added aileron pic
Keep in mind that some of the early or later versions may have been different but the B/C models are represented here. This may have also varied based on intended destination or leasee.
EDIT: Added aileron pic