Maillot and cape. Flyer's hat. Ankle boots with short heel.
Pistons are a poppin on this 1930s very powerful airplane (1). Harlow tosses the cape over her shoulder and climbs up on the wheel (2).
This maillot is an akward combination of the up-coming elastic revolution and the earlier 1920s maillot pantaloon.
From Hells Angles, 1930. Ebay.com. 2 pictures.