You can always hit the menu and right next to airflow is an info button called airplane properties, that will give you the wingspan length and height as well as weight fuel etc etc. This is when you're in the editor.
You create a new aircraft, and then measure the wingspan of the 2 blocks and 1 cockpit. Then add a small (0.25) block on the side, and see how much it differs.
You can always hit the menu and right next to airflow is an info button called airplane properties, that will give you the wingspan length and height as well as weight fuel etc etc. This is when you're in the editor.
What I have done for things like a bus that I built it is 5 wide or 8.2feet
1 unit = 0.5m
each increment on a fuselage is a meter. e.g. 1 by 1 fuselage is 1 metre wide
long range? spawn a stationary AI plane at point A, then move to point B and look at the number next to the target. it is in miles.
If no one leaves a useful answer, you can do a litttle math to find out yourself. Try setting up some proportions!
You create a new aircraft, and then measure the wingspan of the 2 blocks and 1 cockpit. Then add a small (0.25) block on the side, and see how much it differs.