<text id=b2000003><title>Northrop—B-2 Spirit: USAF Variants and Serials</title>
<history>US Air Force: Aircraft</history>
<article><hdr>Northrop—B-2 Spirit: USAF Variants and Serials</hdr><body>
<list style=aflst>
<item><hi format=bold>B-2A:</hi> baseline bomber, produced in incrementally capable variants, culminating in Block 30; all other aircraft to be raised to this definitive standard by retrofit. Current test airframes will become operational later in their careers
<item>· 82-1066 to 82-1071; plus additional contracts