Just made a test of maximum

DCS Open Beta 2.5.6.57530

Normandy map, temperature 20°C, pressure standard atm 29.92 inHg, wind 0 kt

fuel 50%

planes trimmed for horizontal flight

measured flight duration at least 1 min or more until speed stops rising

TAS read from the status bar

615 km/h

646 km/h

670 km/h

592 km/h

631 km/h

674 km/h

525 km/h

585 km/h

611 km/h

594 km/h

646 km/h

698 km/h

542 km/h

572 km/h (with 2nd stage of supercharger ON)

628 km/h

592 km/h

637 km/h

678 km/h

P.S. Misson files attached if anyone wants to verify measured numbers

**TAS speeds**(horizontal flight) for all late war WWII fighters**at sea level, at 3300 m (10000 ft) and at 6100m (20000 ft).****Parameters of the test:**DCS Open Beta 2.5.6.57530

Normandy map, temperature 20°C, pressure standard atm 29.92 inHg, wind 0 kt

fuel 50%

planes trimmed for horizontal flight

measured flight duration at least 1 min or more until speed stops rising

TAS read from the status bar

**Power settings:****P-47D-30**: water injection and turbocharger , 71″ @ 2700 RPM**P-51D**: WEP, 67″ @ 3000 RPM**Spitfire Mk.IX**: +18 @ 3000 RPM**FW 190D**: MW50, 3250 RPM**FW 190A-8**: notleistung 2700 RPM (1.4 ATA)**Bf 190K-4**: MW50, 1.75 ATA (2800 RPM)**Measured speeds:****P-47D-30**615 km/h

646 km/h

670 km/h

**P-51D**592 km/h

631 km/h

674 km/h

**Spitfire Mk. IX**525 km/h

585 km/h

611 km/h

**FW 190D**594 km/h

646 km/h

698 km/h

**FW 190A-8**542 km/h

572 km/h (with 2nd stage of supercharger ON)

628 km/h

**Bf 109K-4**592 km/h

637 km/h

678 km/h

**Conclusion:****At sea level**the winner is**P-47D****At 3300m****P-47D, FW 190D**and**Bf 190K**are very close to each other**At 6100m**the winner is**FW 190D**P.S. Misson files attached if anyone wants to verify measured numbers

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