Documented shared associations — Wallen / Wandia — documented W flag; Wallen funnel association

The flag is blue with a broad gold band, bearing a white charge touching the blue above and below and containing a blue W. The cap badge places the charge towards the hoist, whereas the US Navy centres it. Rosanoski calls the charge a diamond in one note and a triangle in the FOTW description. Both sources attribute it to Wallen and Wandia. Another note associates F281 with Wallen in Merchant Ships, while the source list assigns those Merchant Ships illustrations to F282.