Author is Greg Baughen. There are 4-5 books (?)
He does use a fair amount of hindsight.
However other authors have pointed out that some of the British (and French) officers did tend to cherry pick the experiences of the 1st WW to suit their own view points during the 20s and 30s and discount experiences that were contrary.
And what some officers wanted vs what they could actually get approved/authorized may not be the same thing.
The British were far from the only air force to go down the path that lead to the Lysander. The French went even further down that path but with the fast fall of France for a number of reasons the French Air force failings tend to get over looked.
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They had ordered almost 1400 of these with 730 delivered and while these were an improvement on this
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60 built with the observer in the gondola instead of in the nose. Faster than a Lysander but without fighter escort they were equally doomed/ineffective. I won't go over other nations except to point out the German Hs 126, which was replaced by the Storch.
The problem here was that the Auster is more survivable than it is give credit for for several reasons. Any recon plane short of a single seat fighter (very high speed bomber?) needs escorts or air supremacy to survive. You can limit losses by picking the mission/s. Hedge hop, don't fly more than a few miles into enemy territory and get out quick, don't try to play light bomber and so on. And Austers are a lot cheaper than Lysanders. Pilots aren't but stupid tactics/missions are going to lose Lysanders, Potez 63.11, Hs 126s etc in large numbers.
EVERYBODY fell into the strategic bomber trap and the idea that a few hundred bombers could destroy a single city and cause rioting in the streets and the forced surrender of the central government. So bombers were seen as cheap alternatives to land armies, Navies, and tactical aircraft. The more bombers you had the faster you could force the enemy to surrender.
British and French had done some good things with tactical air in 1918. Problem was that was costly. But not as costly as losing the battle as a whole. And this is where the lessons taken go in different directions. Air force/s say " we cannot afford such losses long term" and they are right. But the losses should not be long term, only at peak times and/or emergency to archive or stop a breakthrough. And the losses to the army of failing to stop a breakthrough (or failing to achieve one if blocked part way through) are going to be very high for the countries involved. Air forces are supposed to part of the country, not fighting their own war.
On September 3, 1914, the German offensive towards Paris was at its peak, when the Allies discovered that the enemy troops had changed their course towards the south-east.
The Franco-British troops immediately redeployed and the resulting confrontation caused the Germans to stop and the Schlieffen Plan to fail.
The movement of enemy troops had been discovered by french Aviation, who demonstrated that the Germans were not where expected.
As in 1937-1939 the French Air Force was preparing... for the war of 1914, it was normal that, in memory of these decisive days of September 1914, they had to be equiped with a very large number of observation planes to the detriment of fighters, bombers and assault aircraft.
Which, by the way, was not of much use in May 1940 since the Germans were advancing faster than the observations were being reported to the Allied headquarters. But that's another story!