The plaque is listed on a number of anti-Bowling websites, but I wanted to go to a neutral source. I found on in AFA/AIRPLANES/B-52/airplanesB52.html -- but that webpage, and indeed all with its ISP, vanished last week. You can still find it by doing a Google search, for the words Diamond Lil B-52 plaque, and click on "cached."

Here's the complete text:

Dedicated to the men and women of the Strategic Air Command who flew and maintained the B-52D throughout its 26 year history in the command. Aircraft 55,003, with over 15,000 flying hours, is one of two B-52's credited with a confirmed MIG kill during the Vietnam conflict.

Flying out of Utapao Royal Thai Naval Airfield in southeast Thailand, the crew of "Diamond Lil" shot down a MIG northeast of Hanoi during "Linebacker II" action on Christmas eve 1972.

The particular feat was accomplished by Airman First Class Albert E. Moore, who brought down a MiG-21 which was closing to attack 'Diamond Lil.' The reason its MiG kill was so celebrated was that a B-52 which got within range of a fighter almost always lost the fight. B-52s were built on the assumption that enemy fighters would be kept at bay by their own fighter escort, and so they had minimal defensive guns.

A WWII B-17 carried, oh, 10 to 14 (depending on model) .50 machineguns facing in every possible direction; they flew in dense formations so that there were hundreds or thousands of guns covering each direction. Facing WWII fighters, the B-17s still took severe losses.

A B-52 had only one defensive gun position, in its tail, which could cover no direction save rearwards: early models had four .50s in it, later ones a 20 mm. It had, in short, a lot less defensive capability, yet was up against modern jet fighters with hundreds of knots speed advantage, air-to-air missiles that could kill from miles off, and heavier guns for close-in. If an enemy fighter closed on a B-52, odds of survival were low.

Diamond Lil was thus commemorated for its rare feat of downing the attacking enemy fighter, instead of being downed by it.

A feat which Moore apparently finds appalling.