I cant really find anywhere a performance sheet for the DB605DB with 9-12159 propeller which is modeled in DCS.
Ive only found the sheet for the DB605DB with 9-12199 prop performance:
- WEP (Sondernotleistung) (1,8 ata with MW50) - 600 km/h at SL, 725 km/h (max) at 7000m
- Climb/combat power (Steig- Kampfleistung) (1,45 ata) - 540 km/h at SL, 700 (max) at 8000m (675 km/h at 7000m)
-(Takeoff setting???) Start - Notleistung (1.5 ata) - 550 km/h at SL, 700 (max) at 8000m (675 km/h at 7000m)
There is 9-12159 line there but only for Sondernotleistung: G=3400kg
- 595 km/h at SL, 710 km/h at 7000m
But as I tested it in game at 7000m it only goes to about 685 km/h