E1 and E3 have manual propellor pitch. E4 is automatic.
Set pitch to 12:00 (full) for take off and landings. Try 10:00 for level flight and 10:30/11:00 for climb. Obviously, in a dive reduce it so your engine remains bleow 26000 RPM's. Go over 30000 RPM's and your engine will be destroyed.
The E4 auto propitch is a bit disfunctional. Take off with manual then set it back on.
Never use flaps for take off in the 109, she doesn't need it, even with a bomb.
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