/r/wwiiplanes collected resources

/u/Thunderboltscoot:

https://wwiiafterwwii.wordpress.com/

/u/Natural_Stop_3939:

https://www.museumalkmaar40-45.nl/voorschriften-manuals

A very large collection of German military manuals.
https://www.youtube.com/@JakesB17Memories

B-17 Lead Navigator Jake Howland describes the operation of various navigation systems, such as Gee-H and OBOE.
https://www.enginehistory.org/

AEHS is $12/year for an outstanding archive of material related to aero engine design and operation.
http://www.gyges.dk/the_luftnachrichten_dienst.htm

This page is a little confusing to navigate, but has a bunch of deep explanations of the details of German radar systems, fighter control systems, and other related topics.
https://www.afhra.af.mil/Information/Studies/Numbered-USAF-Historical-Studies/

Hundreds of scanned USAF Historical studies totaling hundreds of thousands of pages, covering diverse topics such as "The Glider Pilot Training Program", "The Ploesti Mission of 1 August 1943", etc. Also includes a substantial body of retrospectives written by German officers about the operations of the Luftwaffe in WWII.

/u/Aleksandar_Pa :

http://www.theworldwars.net/resources/

Haven't seen it yet, WHAT ARE YOU WAITING?

https://www.tapatalk.com/groups/72nd_aircraft/

Forum dedicated to modelling 1/72nd (mostly WWII) aircraft

http://www.airhistory.org.uk/gy/reg_index.html

Aircraft registration index.

www.primeportal.net/the_airstrip.htm

Aircraft walk-around photos.

https://axis-and-allies-paintworks.com/e107_plugins/forum/forum_viewtopic.php?p=1&id=132

Fantastic "Photo of the Week" section, mostly new, unseesn stuff.

https://www.fokkerg-1.nl/index.php/nl/

Dutch WWIi preservation and restoration society

https://www.passionair1940.fr/

French airforce in WWII

http://www.cmpr.it/manuali.htm

Italian WWII aircraft manuals and part lists

http://www.aviationofjapan.com/

http://arawasi-wildeagles.blogspot.com/

https://japanese-aviation.forumotion.com/f2-color-profiles

Three amazing resources for WWII Japanese aircraft.

https://krila72.wordpress.com/

Blog on Yugoslav aviation and modelling

https://www.luftwaffe-research-group.com/

https://falkeeins.blogspot.com/

https://verde9.com/en/

https://www.ta-152.de/

https://fockewulfta152h0.wordpress.com/

https://ju388.de/

Something for the Luftwaffe buffs.

https://massimotessitori.altervista.org/sovietwarplanes/pages/index.html

Soviet WWII aircraft, also do check the forum.

http://ava.org.ru/

Soviet air units, WWI and WWII

https://airaces.narod.ru/

Soviet air aces, WWI and WWII

https://www.belgian-wings.be/aircraft-1919-1920

Belgian aircraft WWII

https://waralbum.ru/photo/weapons/aircrafts/

https://www.asisbiz.com/history.html

https://zaika70.livejournal.com/

Some more general photo-resource pages.

http://farposst.ru/category/air_ww2

WWII aircraft books download (most of these are out of print now)