Here are my tips on how to align the views and get started
1 - Draw the X,Y,Z axis on your three-view / aircraft blueprint before importing into Blender
2a - Set your Blender 3D cursor to 0,0,0
This will be the center of your Blender aircraft model and helps you to align the background images to your model's origin.
2b - Import the background drawing(s) into Blender and add them to the correct Axis (or View)
3 - Adjust the X, Y (image-background) position, so that the Axis of the background-image EXACTLY matches the 3D Cursors 0,0,0 location.
Then adjust the rotation and scale/size of the background-image to the scale of your Blender model.
4 - Switch to [Quad View]
5a - Check if the SCALE of all background images are EXACTLY right!
5b - Check if all background images are perfectly (make a 90 degree angle) perpendicular to each-other.
This is of VITAL importance, otherwise you keep messing around if the are not exactly
why can't I position the object (Cube) so it matches the background image both the right and front side.
If you have CENTERED all the background images with your 3D cursor (at 0,0,0) and NOT MOVED the 3D Cursor, then (all new objects) the Cube will be inserted exactly in the middle of each view.
TIP1: Since this is your first Blender model, start viewing Krispy's "Blender2FSX" video's on Youtube over here: (a must watch for beginners)!
-
https://www.youtube.com/user/kpgamemods/videos?flow=grid&view=0&sort=da
TIP2: Download my free "Getting started with Blender guide" over here:
-
http://www.fsdeveloper.com/forum/resources/blender2fsx-toolkit-getting-started-guide.191/
This guide helps you to get going with Blender, Blender add-ons, e-book and contains many links to Blender resources online
Keep those screenshots coming!