Infosending1,
I’m a bit late adding this as I’ve not been available for a time and then forgot, but I thought you’d still like to know for future reference. The badge you linked to is the heraldic emblem used to represent the RAF not a cap badge, it’s the equivalent of the crossed swords, lion and crown badge/emblem used to represent the British army vs regimental cap badges.
The cap badge worn by Thomas Wood in the photograph looks to be a bronze version of the standard RAF cap badge worn by all airmen and women below Warrant Officer rank since 1918. It comprised the RAF monogram with laurels around surmounted with the King’s (aka Imperial) crown and was based on the former RFC monogram badge; warrant and commissioned ranks have their own style of cap badges incorporating an eagle.
Current versions of badges, that apart from the material, are virtually unchanged since 1918 are shown in this pdf
http://www.raf.mod.uk/rafcms/mediafiles/0F20E8C8_5056_A318_A... You’ll find commissioned officers badges on pdf pages 10 to 12; warrant officers and airmen on page 18.