Some cannons like the Hispano’s only fired ball ammunition for most of the war, some, most, usually fired a mixed chain, and others would depending on there Mishon fire Just AP.
My suggestion I suppose is then if there really go all in on specific and appropriate ammo chain mixes that they do so
Apart from the obvious Yak, I would love to know which cannons have HE and which planes don’t…
FW?
410?
109?
Spit?
Beau?
A20?
La5/7?
Maybe easier to say what planes don’t…
On WT you select your armament.
Afaik planes in enlisted use the default ammo belts from WT.
NOTE: Fragmentation rounds (e.g. Russian 20mm FI-T rounds) act the same as HE rounds basically. Immediate-Action Incendiary (IAI) rounds also act the same as HE rounds, just substantially weaker.
Here’s the ammo belt compositions:
German 13mm: IT, AP-T, IAI
(Incendiary Tracer, Armor Piercing Tracer, Immediate-Action Incendiary)
*Planes which use this: BF 109 (G-6, G-10, G-14), FW 190 A-8, Me 410 B-1
German 15mm: AP-T, IT, IT, HEF-T
(Armor Piercing Tracer, Incendiary Tracer, Incendiary Tracer, High Explosive Fragmentation Tracer)
*Planes which use this: BF 109 F-2
German 20mm (Early): IT, HEI, APHE
(Incendiary Tracer, High Explosive Incendiary, Armor Piercing High Explosive)
Planes which use this: BF 109 (E7, F-1), BF 110 (C-7), Fw 190 A-1
German 20mm (Late): IT, IT, APHE, HEI
(Incendiary Tracer, Incendiary Tracer, Armor Piercing High Explosive, High Explosive Incendiary)
Planes which use this: BF 109 (G-6, G-10, G-14), C 202 EC, Me 410 (A1/U2, B-1), Fw 190 A-8, IAR-81C
German 30mm (Early): HEI-T, I, AP-I
(High Explosive Incendiary Tracer, Incendiary, Armor Piercing Incendiary)
Planes which use this: BF 110 C-6
German 30mm (Late): HEI-T, I
(High Explosive Incendiary Tracer, Incendiary)
*Planes which use this: BF 109 (G-10 [Premium], G-14 [Premium]), BF 110 G-2 *
German 37mm: HVAP-T, HEF-T
(High Velocity Armor Piercing Tracer, High Explosive Fragmentation Tracer)
Planes which use this: BF 110 G-2
British 20mm: HEF-I, HEF-I, P, T
(High Explosive Fragmentation Incendiary, High Explosive Fragmentation Incendiary, Practice [a.k.a. Ball], Tracer)
Planes which use this: Spitfire Mk Vb, Beaufighter
British 40mm: AP-T, HEFI-T
(Armor Piercing Tracer, High Explosive Fragmentation Incendiary Tracer)
Planes which use this: Hurricane Mk IV
Russian 12.7mm: T, AP, AP, IAI
(Tracer, Armor Piercing, Armor Piercing, Immediate-Action Incendiary)
Planes which use this: Mig-3-15, Pe-3, Yak (7B, 3, 9T, 9K)
Russian 20mm: FI-T, AP-I
(Fragmentation Incendiary Tracer, Armor Piercing Incendiary)
Planes which use this: IL-2 [Moscow], Yak (1, 7B, 3), La-5FN
Russian 23mm: FI-T, AP-I
(Fragmentation Incendiary Tracer, Armor Piercing Incendiary)
Planes which use this: IL-2M
Russian 37mm: AP-T, HEI-T
(Armor Piercing Tracer, High Explosive Incendiary Tracer)
Planes which use this: Yak-9T, IL-2 37
Russian 45mm: HEFI-T, HEFI-T, AP-T
(High Explosive Fragmentation Incendiary Tracer, High Explosive Fragmentation Incendiary Tracer, Armor Piercing Tracer
Planes which use this: Yak-9K
US 20mm: HEF-I, AP-T
(High Explosive Fragmentation Incendiary, Armor Piercing Tracer)
Planes which use this: All the P-38’s
US 37mm: HE
(High Explosive)
Planes which use this: P-63A-10
Planes without any HE rounds:
-I-16 Type 24
-Fw 189
-Hs 123 A1
-I-153 M-62
-Ju-87 (All)
-P-51 (All)
-P-47 (All)
-P-40 (All)
-A-20G
-SBD-3
-Hurricane Mk IIB
-Re.2000
-Su-2 (M82)
-A-20 Boston
-Potez 633
Thanks for Posting that, The Re. 2000 should use a mixed belt the Italians always used them.
FW 189, when are we getting that For Tunisia ??? 
Out of curiosity, what is the belt composition of the 20mm guns on the AB 41 and pz.II?
They were clip fed and Afik for the German 2 cm it was 10 round mags of either HE or AP historically
I don’t know of hand about the Italian gun