Finnish OOB35 Corrections and Suggestions PART 2 -- Units

[PvtJoker]

Originally Posted by PvtJoker

All in all I am still thinking Armor Value 3 for the front hull. 2.5 would probably be closer to the "truth", but since we can't have that, 3 it should be. I am also considering the fact that highly sloped armor will very often make small projectiles like ATR bullets ricochet, which increases the practical protection over the penetration path required to punch a hole through the armor. On the other hand we do know that the Lahti ATR was effective against the BT-5 even through frontal armor, but I have no data about the combat record of the Maroszek wz. 35 or the PzB 39 against the BT-5, although both were still used by the Germans in summer 1941.

An addition to above: I measured the glacis plate slope from images at the Russian Battlefield site and it is no less than 60 degrees (the same as BT-7 and T-34, so really no surprise there). That makes the required penetration path 26mm and so the front hull armor should definitely have Armor Value 3 in the game.

In addition, Russian Battlefield says in the BT-7 article:

Броневая защита танка - противопульная, выполненная из броневых катаных листов толщиной 6,10,13,15 и 20мм. Броневая защита машин первых лет выпуска находилась на уровне танка БТ-5.

Which to me, knowing that 15mm plate was used with the BT-5, suggests that it had 15mm in the turret front and sides just like BT-7.