4.13.2 de-bugging

[gaunt1]

Not really a bug, but I think it still needs fixing. All He-111 variants are a little bit too slow. They should be about 20km/h faster.

Flying the H2, I could achieve only 400km/h, while its top speed is around 420-425 according to most sources
For the H6/11/16, its 410 vs 430-435.
Of course, I tried it without any bomb load

Sources:
Manfred Griehl - Heinkel He-111 v2 (Airdoc 007)
Krysztof Janowicz - Heinkel He-111 vol.1 (Kagero Monographs)