Pilot skill: 14
I tried that half-way and only one or two people liked it.
Just for the sake of argument, could we see what results one gets when the value of speed at SL is set to 1.5, 10K to 1.25, and 15K to 1?
Which other factor would I change to compensate for the .25 total difference?
Here is what I get with the following settings, a more extreme version of what you're asking for (turn rate added):
1.5 Speed at sea level
1.0 Speed at 10k ft
.5 Speed above 10k ft
1.5 Climb at sea level
1.0 Climb at 10k ft
0.5 Climb at 15k ft
1.0 Turn-rate
1.0 Turn radius
1.0 Turn radius w flaps
1.5 Primary Lethality
1.5 Secondary Lethality
0.5 Primary Firing time
0.5 Secondary Firing Time
1.25 Primary Ballistics
1.25 Secondary Ballistics
.75 Flight Time (at full throttle)
.75 Ordinance
1.25 Roll Rate
.75 Cockpit Visibility
.75 Dive Acceleration
.75 Energy Retention
1.5 200-300mph acceleration
F4U-4 0.62
Tempest 0.59
Spit XIV 0.55
Spit XVI 0.53
F4U-1C 0.41
Spit VIII 0.38
LA7 0.34
P47N 0.34
F4U-1D 0.33
P51D 0.28
P38L 0.25
P51B 0.24
190D-9 0.23
P47D-40 0.23
KI84 0.22
P38J 0.21
F4U-1 0.20
109 K-4 0.18
P47D-25 0.16
F6F 0.13
LA5 0.13
N1K2 0.11
Spit IX 0.11
109 G-14 0.09
190A-5 0.09
P47D-11 0.09
TA152 0.09
Typhoon 0.09
109 G-2 0.07
Mossie 0.02
109 F-4 0.01
190A-8 -0.01
110 G -0.02
YAK 9U -0.03
P38G -0.08
109 G-6 -0.09
C205 -0.12
Spit V -0.15
190F-8 -0.16
YAK 9T -0.26
Seafire IIC -0.28
KI61 -0.31
C202 -0.32
FM2 -0.45
Hurri IIC -0.46
P40E -0.57
Spit I -0.58
Hurri IID -0.69
A6M5 -0.70
110 C -0.75
A6M2 -0.82
109 E-4 -0.83
F4F -0.87
Hurri I -0.87
P40B -0.90
The biggest surprise to me is the low rankings of the Hurri IIc and N1K, both slow, nimble aircraft with 4 cannons that enjoy main arena success. They're just not well-rounded enough to do well when so many things are considered, but a lot of their success comes from fundamental mistakes by their opponents. The N1K suffers most from its cannon ballistics.
I've toyed with all sorts of settings but it's very difficult to make the SpitXVI rank lower than the C-hog.
Perhaps if I upped ammo duration a bit at the expense of something else.
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Edit: If you want the spreadsheet so you can toy with the numbers yourself pm me your email address.