Altitude of bombing ?

[Bertrand H]

Hi,

On three reports two do not give the correct types of planes "seen" from the ground.

When the Luftwaffe bombarded French airfields during the spring of 1940, the comparison between the type of aircraft used and those observed from ground was not the same : Dornier for Heinkel or Junker.....

Although it is difficult to accurately observe a bombing (and aircraft ! ) because it is necessary to hide what was the average altitude used in May / June 1940 used to bomb the airfield ?

thank you in advance

Bertrand