I don't make air bread, but King Arthur sells a very expensive baking
pan for "sandwich bread". The recipe is on the KA web site
<http://www.kingarthurflour.com>.
The pan is generically called a "pullman" pan, and they're available
from many sources. Commercial suppliers often sell them without the
lids, so make sure you get a lid, if you buy from one. You can
improvise by putting a lightly greased sheet pan on top of a regular
loaf pan, and putting a brick or other suitable weight on the sheet
pan above the loaf pan. If you use more than one loaf pan under the
sheet pan, you want a weight above each.
If you try the recipe without covering the pans, I suspect that
you'll find it's got big voids in it, and doesn't make good sandwiches.