Our main squad night is currently Saturday 8pm Eastern US time / 7pm Central. We also generally gather Wednesdays during the same time. I mostly fly weekends of late, but can try and make it up Wednesday. We fly Rooks, primarily in the LW arenas.
Our main ride is the F4U-1A with hops in the -4 if we need some extra uberness, and the -1 if the others are unavailable, as we're predominantly an air-to-air squad (1A is simply better suited to strict air to air combat than the 1D). We generally use the Charlie and 1D if we're expecting to do air-to-ground work or intend to drop iron before mixing into the furball.
We have 8 active members on the roster and are looking to expand. Ideally I'd like to be able to get ops going with at least a dozen pilots in the air at once (so the high-end target is going to be 16-18 to allow for no-shows/etc).