I'll have a go at Q2. Guilio Douhet was ahead of Trenchard. Douhet started writing in early 1912 (during the Italian/Ottoman war for control of Libya). Trenchard wasn't really in the game at that point (he learned to fly in 1912 - but wasn't writing much about it until 1913 onwards during his time at CFS). Douhet continued to publish (from his cell - imprisoned for ordering mods to ac without authorisation) until well after WW1 - writing his key treatise in 1921 (I think). Douhet was aware of 'Boom' but was ahead of him (to start with at least).
Hope this helps - with all the answers to your Qs you should have the dullest dinner party in the world!!!
