Am I wrong to assume that it wasn't so predominant in the Luftwaffe's operations later in the war? (I'm no expert)
After *just* finishing Hans Ulrich Udel's "Stuka Pilot," I can confrim that Stukas were used literally until the last hour of the war, and even slightly after.
Rudel showed that even while the Stuka was severely outclassed by Russian fighters and such, he still successfully operated them under conditions of heavy flak and no fighter escort on occasions. The Stuka was used from the onslought of the war, in North Africa to the Mediterranian, in the Battle of Britian, On the Western Front, in the tide-turning battle of Stalingrad, and very extensively on the Eastern front, up until the last hours of the war. The Stuka is apparently a very tough bird. Rudel brought many a flak-battered Stuka home. Rudel crashed one so severely that the engine was found far from the wreckage, and he woke up laying by the tail (which was seperated from the rest of the fuselage) with his rear gunner shouting to him from *in front of him* and lived to fly hundreds more sorties until the war's end. I'm not sure how well they would fare in the skies of Aces High, but I would sure love to find out.
Also, if you get a chance to read Stuka Pilot, I highly reccomend it as it is very interesting and gives a fairly detailed account of the operations of a dive-bombers on the Eastern front, and is a rather inspiring story of how Rudel persistantly defended the fatherland, even against the direct orders of Hitler towards the end.
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Do not continue reading if you are currently reading Stuka Pilot or plan on reading it, because it may ruin the ending

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Interestingly, Rudel was about to lead an anti-tank Stuka sortie (this was after Hitler commited suicide) when he was informed of Germany's unconditional surrender. Interestingly enough, after the surrendur, a handful of 190's and Stukas headed out to surrendur to the Americans before the Soviets could reach them. Those who couldn't fly marched in a column on the ground. Just before leaving, Russian Boston bombers unsucsessfully bombed the column. While on the way to the American occupied aerodrome, the Stukas were attacked by Russian fighters, but yet most made it through. You have to understand that Rudel flew over 2500 sorties over the eastern front, and accounted for over 500 tanks destroyed, so the Russians wanted him bad, surrendur or not. Upon reaching the American aerodrome, Rudel instructed the others in Stukas to jettison their landing gear (a feature which the Stuka had) and belly-land in order to keep the Americans from getting anything in the form of operational German equipment. After making a low pass over the aerodrome to ensure that the AA wasn't going to fire on them (and bringing the celebrating Americans to the ground from fear) all but one Stuka belly-landed. It turns out that the Stuka that landed normally was carring a woman who had been standing on the outside of the field on takeoff. The crew had placed the stranger in the rear fuselage to save her from the Russians, and refused to belly-land for it might harm her. The column wasn't so lucky. All but a few were butchered when the column was intercepted by Czec and Russian troops

-Mark VanZwoll-