Propeller Block

HST's and small squares make this simple block which was popular in the 1930's.  It is really a simple pinwheel which has sashing made from squares added between the HST's.  Choose colours the make the "blades" a unified colour or highlight the central squares.

 

There are several YouTube videos that I found

This example from Patchwork Square

Propeller Quilt Block Tutorial: 5", 7-1/2" and 10" - from Generations Quilt

This block is made from an uneven nine patch- other nine patch blocks