Complete Aircraft Performance Comparisons
Speed Comparison:
The fastest planes are the Fw190, the P38, P39 and the Spit9. The slowest (no surprise) are the bombers and the Ju52 transport plane.
Climb comparison:
The Spit9 blows away the competition in climbing ability. 2nd and 3rd place go to the Bf109F4 and the SpitV respectively.
Roll Comparison:
The best low speed rolling planes are the Fw190 and the D520. High speed roll is dominated by the Fw190, D520, H75, H81. Of note is the high speed effects of the Bf109 series and the Spitfire series, which lose roll performance at extreme speed due to wing twist issues. Also, the Spit5/9 have a different high speed curve dropoff from the other airplanes due to the presence of spring tabs.
Top Speed, 200m altitude (measured to nearest 5kph):
| Fighter | WEP top speed | Non-WEP top speed | WEP power boost percent |
| Fw190a4 | 575kph | 560kph | 8% |
| P38 | 565kph | 520kph | 24% |
| Spit9 | 545kph | 545kph | 2% |
| P39 | 540kph | 510kph | 10% |
| Bf109F4 | 530kph | 505kph | 9% |
| H81 | 495kph | 480kph | 3% |
| Bf109E4 | 495kph | 475kph | 5% |
| Spit1 | 485kph | 470kph | 3% |
| Spit5 | 480kph | 470kph | 3% |
| H75 | 465kph | 430kph | 15% |
| Bf110C | 450kph | 435kph | 6% |
| D520 | 460kph | 445kph | 8% |
| Hurri2 | 445kph | 435kph | 3% |
| Hurri1 | 400kph | 395kph | 3% |
This table is in order of top possible sustained speed on the deck. The Fw190 is the fastest, followed closely by the P38. The Spitfire Mk IX, despite it's huge power reserve, is 30kph slower than the Fw190a4. The slowest fighter is the Hurricane Mk 1.
In general, the British fighters get minimal boost from WEP (at 200m). The American imports to the French have the highest WEP boost (except for the H81), while the D520 is middle-of-the-road. The Axis fighters generally do 8-10%, except for the E model 109. WEP boost will vary with altitude, with WEP boost typically falling off shortly before the engine reaches it's critical altitude for the current supercharger setting.
Sustained Turning comparison:
Turn rate determined via maximum edge-of-stall turn, maintaining 200m altitude, when speed stabilized, measured to nearest 5kph, WEP.
Flaps up turn ability:
| Airplane | Stabilized Speed | Radius of Turn | Turn Rate (deg/sec) |
| Bf109E4 | 195kph | 128m | 24 |
| Bf109F4 | 205kph | 126m | 26 |
| Bf110C | 175kph | 139m | 20 |
| D520 | 220kph | 130m | 27 |
| Fw190a4 | 225kph | 197m | 18 |
| H75 | 170kph | 110m | 25 |
| H81 | 190kph | 141m | 21 |
| Hurri1 | 150kph | 93m | 26 |
| Hurri2 | 170kph | 127m | 21 |
| P38 | 250kph | 196m | 20 |
| P39 | 215kph | 197m | 17 |
| Spit1 | 175kph | 110m | 25 |
| Spit5 | 180kph | 119m | 24 |
| Spit9 | 205kph | 132m | 25 |
| Ju87B | 165kph | 103m | 25 |
Flaps down turn ability:
(Spitfire series unable to attain a stall under more than 1g with flaps down)
| Airplane | Stabilized Speed | Radius of Turn | Turn Rate (deg/sec) |
| Bf109E4 | 155kph | 102m | 24 |
| Bf109F4 | 160kph | 100m | 25 |
| Bf110C | 155kph | 121m | 20 |
| D520 | 200kph | 115m | 27 |
| Fw190a4 | 190kph | 137m | 22 |
| H75 | 145kph | 99m | 23 |
| H81 | 160kph | 116m | 22 |
| Hurri1 | 130kph | 79m | 26 |
| Hurri2 | 140kph | 103m | 22 |
| P38 | 165kph | 120m | 22 |
| P39 | 170kph | 192m | 14 |
| Ju87B | 125kph | 71m | 28 |
The Ju87B was included due to it's excellent turning ability. It has huge wings, with thick airfoil section, ailerons/flaps positioned to increase lift when not deflected, and decent power. It's wing loading is as good as a Hurricane Mk 1, and it has a slightly better thrust to weight ratio than the same Hurricane at sustained turn speeds. Flaps deployed for Ju87B puts them in an arrangement similar to Fowler Flaps and yield excellent increase in lift for less drag than the split flaps found on the Hurricane.