Aircraft type: Messerschmitt Bf 109 E-1, E-3, E-4
System affected:Warning sounds
Description of the problem: The 109 was a safety device: In the case where the Flap is open, but the Langing Gear is not, a horn (E11 - "Boschhorn") warn the pilot. As the old Il-2-it worked well, now completely missing. Not only the later models, the "E" also was equipped with it.
Source: Bf 109 E Betriebs- und Rüstanleitung, pages 82-87, 89 ( <-- this is a link. Don't have to ask the source docs in PM
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