You don't need an account to post on the 381st forum.  However, if you do have an account you can post pictures.

Below is the web site that hosts the 381st forum.  It's contained in a box on the 381st web site so you can see it and poke around.

You can jump directly to the forum via this link:  http://forum.armyairforces.com/Ridgewell-f31.aspx