February 20, 201016 yr Just installed the upgrade of Milton's D18S.Could someone please explain the altitude in the AP?Do I just use the up/down switch to level the plane when I reach desired altitude?I went to his website and in the cockpit photos I don't see the AP in his original version.Also,the nav radios don't seem to pick up a signal.Thanks for any help.Ron Bring back Chief Illiniwek!University of Illinois.
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