A

Letter A (Alpha)
International Code of Signals
Alpha; I am undergoing a speed trial, became: I have a diver down; keep well clear at slow speed.

usage:	international flag (signal), signal flag (nautical signal)
continent:	World
shape:	swallowtailed
colors:	(only colors)white, blue, (only colors)
devices:	VERTICAL STRIPE number: 1 color: whiteVERTICAL STRIPE number: 1 color: blueCONCAVE PENTAGON number: 1 color: blue same as: vertical stripe
division:	vertical division: number of stripes: 2 stripes, stripe symmetry: symmetric stripes, additional area: no additional area, stripe areas: equal, division lines: straight,
charges:	charge(s): none, partition(s): none