20th July 1942 was a day of maximum effort for the Allies. I don't normally go into statistics and combat reports but this is about as good as it gets for me.
Every airfield in Burma hit the reinforced Tavoy (fighter heavy wave from Rangoon, followed by unescorted heavies/Wellingtons from Magwe/Mandalay). Daly Waters was hit by my reinforced Aussie airforce at Tennant Creek. And near Canton a lucky encounter - three ROCAF squadrons found a huge unescorted bomber attack.
Day Air attack on Daly Waters , at 35,90
Japanese aircraft
A6M2 Zero x 31
Ki-44-IIb Tojo x 13
Allied aircraft
Kittyhawk I x 42
B-25C Mitchell x 23
B-26B Marauder x 8
Japanese aircraft losses
A6M2 Zero: 11 destroyed, 7 damaged
Ki-44-IIb Tojo: 1 destroyed, 5 damaged
Ki-46-II Dinah: 1 destroyed
Allied aircraft losses
Kittyhawk I: 18 destroyed, 6 damaged
B-25C Mitchell: 2 destroyed, 5 damaged
B-26B Marauder: 1 damaged
Japanese ground losses:
16 casualties reported
Guns lost 1
Airbase hits 2
Airbase supply hits 1
Runway hits 3
Aircraft Attacking:
2 x B-25C Mitchell bombing at 14000 feet
4 x B-26B Marauder bombing at 14000 feet
5 x B-25C Mitchell bombing at 14000 feet
2 x B-25C Mitchell bombing at 14000 feet
4 x B-26B Marauder bombing at 14000 feet
3 x B-25C Mitchell bombing at 14000 feet
3 x B-25C Mitchell bombing at 14000 feet
3 x B-25C Mitchell bombing at 14000 feet
3 x B-25C Mitchell bombing at 14000 feet
Day Air attack on Tavoy , at 28,37
Japanese aircraft
A6M2 Zero x 15
A6M3 Zero x 20
Ki-43-Ib Oscar x 9
Ki-44-IIb Tojo x 6
Allied aircraft
PBY Catalina x 3
Hurricane IIb x 48
P-40E Warhawk x 24
B-25C Mitchell x 9
Japanese aircraft losses
A6M2 Zero: 7 destroyed, 1 damaged
A6M3 Zero: 3 destroyed, 2 damaged
Ki-43-Ib Oscar: 1 destroyed, 2 damaged
Ki-46-II Dinah: 1 destroyed
Allied aircraft losses
PBY Catalina: 1 damaged
Hurricane IIb: 19 destroyed, 10 damaged
P-40E Warhawk: 13 destroyed
B-25C Mitchell: 1 destroyed, 7 damaged
Japanese ground losses:
59 casualties reported
Guns lost 1
Airbase hits 1
Airbase supply hits 3
Runway hits 5
Aircraft Attacking:
6 x B-25C Mitchell bombing at 10000 feet
2 x B-25C Mitchell bombing at 10000 feet
Day Air attack on Tavoy , at 28,37
Japanese aircraft
A6M2 Zero x 8
A6M3 Zero x 17
Ki-43-Ib Oscar x 8
Ki-44-IIb Tojo x 6
Allied aircraft
B-17E Fortress x 24
B-24D Liberator x 29
Japanese aircraft losses
A6M2 Zero: 2 destroyed, 4 damaged
A6M3 Zero: 1 destroyed, 6 damaged
Ki-43-Ib Oscar: 2 damaged
Ki-44-IIb Tojo: 1 destroyed, 2 damaged
Ki-46-II Dinah: 1 destroyed
C5M Babs: 1 destroyed
Allied aircraft losses
B-17E Fortress: 11 damaged
B-24D Liberator: 11 damaged
Japanese ground losses:
155 casualties reported
Guns lost 1
Airbase hits 4
Airbase supply hits 1
Runway hits 44
Aircraft Attacking:
6 x B-24D Liberator bombing at 10000 feet
4 x B-17E Fortress bombing at 10000 feet
4 x B-17E Fortress bombing at 10000 feet
6 x B-24D Liberator bombing at 10000 feet
3 x B-24D Liberator bombing at 15000 feet
4 x B-17E Fortress bombing at 10000 feet
3 x B-17E Fortress bombing at 10000 feet
3 x B-24D Liberator bombing at 10000 feet
4 x B-24D Liberator bombing at 15000 feet
3 x B-17E Fortress bombing at 10000 feet
3 x B-17E Fortress bombing at 10000 feet
2 x B-24D Liberator bombing at 10000 feet
3 x B-24D Liberator bombing at 15000 feet
2 x B-24D Liberator bombing at 15000 feet
3 x B-17E Fortress bombing at 10000 feet
Day Air attack on Tavoy , at 28,37
Japanese aircraft
A6M2 Zero x 4
A6M3 Zero x 8
Ki-43-Ib Oscar x 4
Ki-44-IIb Tojo x 3
Allied aircraft
Wellington III x 57 (half bombload due to extended range)
Liberator III x 33
Japanese aircraft losses
A6M2 Zero: 2 destroyed
A6M3 Zero: 3 damaged
Ki-44-IIb Tojo: 1 destroyed, 1 damaged
Allied aircraft losses
Wellington III: 8 damaged
Liberator III: 6 damaged
Japanese ground losses:
164 casualties reported
Airbase hits 9
Airbase supply hits 6
Runway hits 65
Aircraft Attacking:
6 x Liberator III bombing at 12000 feet
4 x Wellington III bombing at 12000 feet
8 x Wellington III bombing at 12000 feet
4 x Wellington III bombing at 12000 feet
9 x Wellington III bombing at 12000 feet
4 x Liberator III bombing at 12000 feet
4 x Liberator III bombing at 12000 feet
4 x Wellington III bombing at 12000 feet
3 x Liberator III bombing at 12000 feet
3 x Wellington III bombing at 12000 feet
6 x Wellington III bombing at 12000 feet
3 x Wellington III bombing at 12000 feet
3 x Liberator III bombing at 12000 feet
4 x Liberator III bombing at 12000 feet
3 x Wellington III bombing at 12000 feet
4 x Wellington III bombing at 12000 feet
3 x Wellington III bombing at 12000 feet
3 x Liberator III bombing at 12000 feet
3 x Liberator III bombing at 12000 feet
3 x Wellington III bombing at 12000 feet
3 x Wellington III bombing at 12000 feet
Day Air attack on 1st New Chinese Corps, at 44,40
Japanese aircraft
A5M4 Claude x 16
D3A2 Val x 18
B5N2 Kate x 9
Ki-27 Nate x 23
Ki-43-Ib Oscar x 12
Ki-30 Ann x 12
Ki-21-II Sally x 21
Ki-49 Helen x 23
Ki-48-II Lily x 33
Allied aircraft
P-43A Lancer x 4
P-38F Lightning x 11
I-153c x 4
Japanese aircraft losses
A5M4 Claude: 2 damaged
D3A2 Val: 1 destroyed, 2 damaged
B5N2 Kate: 1 destroyed, 1 damaged
Ki-27 Nate: 1 destroyed, 3 damaged
Ki-43-Ib Oscar: 1 damaged
Ki-30 Ann: 5 destroyed, 2 damaged
Ki-49 Helen: 2 damaged
Ki-48-II Lily: 2 damaged
Allied aircraft losses
P-43A Lancer: 1 damaged
P-38F Lightning: 5 damaged
I-153c: 3 damaged
Allied ground losses:
172 casualties reported
Guns lost 5
Vehicles lost 1
Aircraft Attacking:
7 x Ki-30 Ann bombing at 2000 feet
24 x Ki-48-II Lily bombing at 6000 feet
15 x Ki-21-II Sally bombing at 6000 feet
11 x Ki-49 Helen bombing at 6000 feet
8 x A5M4 Claude bombing at 2000 feet
9 x D3A2 Val bombing at 2000 feet
8 x B5N2 Kate bombing at 6000 feet
10 x Ki-43-Ib Oscar bombing at 2000 feet
8 x A5M4 Claude bombing at 2000 feet
8 x D3A2 Val bombing at 2000 feet
9 x Ki-27 Nate bombing at 2000 feet
10 x Ki-27 Nate bombing at 2000 feet
12 x Ki-49 Helen bombing at 6000 feet
9 x Ki-48-II Lily bombing at 6000 feet
6 x Ki-21-II Sally bombing at 6000 feet
2 x Ki-43-Ib Oscar bombing at 2000 feet
2 x Ki-27 Nate bombing at 2000 feet
1 x Ki-27 Nate bombing at 2000 feet
TOTAL LOSSES
Allied 58 (all air to air) - 22 Hurricanes, 19 Kittyhawks, 13 P40Es
Japanese 50 (31 air to air) - 31 Zeroes, 4 Tojos
Question is, is this sufficient to attritt him noticeably? Given the fighting goes on over his airfields so only a fraction of those shot down mean dead Japanese pilots, I think the answer is - no.