CHAPTER X
German Air Force

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Footnotes

1. These fourth and fifth Gruppenare not to be confused with the Erganzungsggruppen, which are devoted to operational training as discussed in Section VII.

2. Sturzkampfgeschwader (Dive bomber) and Schnellkampfgeschwader (Ground attack) have been incorporated into, or superseded by the Schlachtgeschwadern.

3. The basic principle of radar is the transmission of a wireless pulse of very short duration, the reflection of the pulse by the object to be detected, and the reception of both the original and reflected pulses by a receiver adjacent to the transmitter. Electrical measurement of the time interval between the two pulses gives a direct indication of the distance of the reflecting object. Means are also provided whereby direction of the object from the transmitter, and in some cases its height, can be obtained.