The Royal Flying Corps and the Royal Naval Air Service were combined to form the Royal Air Force, on 1 April 1918. Centenary celebrations are in order.
Finally, there are T-shirts in the T-shirt section of my web-shop. Not just one or two, but 21 different illustrations. Tally-ho! AerodromeShop.com
Two Messerscmitt BF-109s on a reconnaissance mission. An illustration of mine for a recently published book on Finnish Air Force reconnaissance aircraft – 'Tiedustelulentäjät Suomen sodissa 1918–1945' a giant 608 page, numbered, limited edition. The text is only in Finnish.