HE and AP Velocity

[INoCU]

For whatever reason, i never believed that the HE and AP on the Yorck had such a different time to get to target until i bought one. Stock, it takes about~10.5 seconds to travel ~15.5km with HE and ~14.5 seconds to travel the same distance with AP. 

 

Now I'm wondering, which other ships have a noticeable difference between HE and AP travel times. If there aren't any with a noticeable difference, are there any ships with any difference between shell velocities?

[Grevester]

I think a friend of mine mentioned Aurora had one. Ships that do have this difference is very rare. Reason Yorck does is because it has WW2 HE and WW1 AP iirc.

[atPrick__]

Aurora has totally different ranges between AP and HE.

[VG_Kairos]

Many ships have faster AP over HE. MANY.

[Shatara422]

Cleveland is a fun case. The HE is faster at the muzzle, but AP will reach max range about a second faster due to lower drag.

[1nc0mp3t3nt_1]

For whatever reason, i never believed that the HE and AP on the Yorck had such a different time to get to target until i bought one. Stock, it takes about~10.5 seconds to travel ~15.5km with HE and ~14.5 seconds to travel the same distance with AP. 

 

Now I'm wondering, which other ships have a noticeable difference between HE and AP travel times. If there aren't any with a noticeable difference, are there any ships with any difference between shell velocities?

Yorck is the most noticeable. The rest of the ships might sometimes have a marginal difference

[Xero_Snake]

I wonder why Japanese BB's HE shells are abysmally slower than APs?

[MrDeaf]

I wonder why Japanese BB's HE shells are abysmally slower than APs?

 

410mm HE is a 80kg lighter shell launched at the same muzzle velocity, so it doesn't retain velocity as well as AP.

[Insolvent_Pea]

For whatever reason, i never believed that the HE and AP on the Yorck had such a different time to get to target until i bought one. Stock, it takes about~10.5 seconds to travel ~15.5km with HE and ~14.5 seconds to travel the same distance with AP.

 

Now I'm wondering, which other ships have a noticeable difference between HE and AP travel times. If there aren't any with a noticeable difference, are there any ships with any difference between shell velocities?

 

Gremyashchy has a noticeable difference in velocity with it's HE - AP shells. HE is a lot slower

[Xero_Snake]

 

410mm HE is a 80kg lighter shell launched at the same muzzle velocity, so it doesn't retain velocity as well as AP.

 

I see. Not only lighter projectile loses momentum fast, but also more susceptible to turbulent drag that cause the instability of its trajectory, yes?

[Eisennagel]

 

 

USN cruisers tend to have different AP/HE speeds but its more subtle.

 

Pensacola - New Orleans :  The AP tends to travel fast and flat, with great penetration, but the HE has a slower flight and a higher arc.  Both 118kg shells, AP shoots at 853mps, the HE shell shoots at 823mps.

 

Baltimore - Des Moines:  AP has a slower more arced travel; HE has a faster, flatter flight but has a lighter shell.  AP shell weighs at 152kg but shoots at 762mps, the HE shell weighs at 118kg but shoots at 823mps.

 

Cleveland - HE has a faster initial flight than AP, but over on longer distances, AP has a faster flight due to heavier shell.  HE weighs at 59kg and shoots at 762mps, the HE shell weighs at 48kg and shoots at 812 mps.