Hmm, let me think... Fully documented test flight reports of Bf 109 G-2, LaGG-3, Pe-2, Fiat G.50...
Bf 109 G-2 manuals, Ju 88 A-4 manuals complete with autopilot, remote compass, FuG 10 radio, Peil Gerat, Stuvi dive bombing and Lotfe level bombing instructions and manuals, different arming options, how to install the 20 mm MG FF/M into the cockpit etc. etc. all scanned.
DB 601 E, DB 605 A-C, Jumo 221 etc manuals, Full sets of Blenheim, Do 17 etc documents etc, etc still waiting for us...
Woweee what a place !!!
Maybe Y'all should start learning Finnish now
P.S. All the original language docs are there also, but we prefer the Finnish ones for now.
Translations of the juiciest bits on this channel later