Fairly simple, we know that Kurganetz has applique armor which cover the entire side while Boomerang won't have such applique armor and the roadwheels are not really going to protect the side. The other point is that the Boomerang has a V-shaped hull, which thins out the interior, meaning thick side armor is doubtful. I highly doubt it is even close in protection to the Kurganetz.
They are the same weight class, so I would expect they would both have the same transmission and engine and of course they have the same crew stations and of course turrets will be the same... so if they are not as well armoured why would they be in the same 25 ton weight class?
they are both medium weight vehicles for medium brigades... the main difference is mobility.
Maybe that slim side armor above the wheels but everything else behind the wheels is protected like it is now, no additional armor or protection so lets hope for good APS and ERA where they can fit it.
Just because we have not seen any skirt armour does not mean it wont have it...
After all, the SU had access to ERA that could be installed on light-armoured vehicles (successful tests of BMP ERA) and APS starting from the mid-80s Drozd, yet the Soviet Union's BTR/BMP armada was never equipped with such technologies.
Actually tests with BMPs and especially BTRs were not that successful with ERA... which is why they invested lots of money in NERA, as even if the ERA stopped an incoming threat like an RPG the explosion often collapsed the armour on a BTR and did a lot of damage/injured crew etc.
Hence, I think (and I hope I am wrong) that the final armour option of Boomerang will comprise of an aluminium alloy/steel chassis (similar to BMP/BTR) with composite applique armour plates.
They mentioned the new materials used to armour the new vehicles was exotic and not cheap.
I agree. Even though the vehicles are in a similar weight class, the presence of NERA/ERA/APS on one and composite armour plates on the other render their respective defenses versus chemical/kinetic penetrators very different.
If anything the Boomerang would need better armour as it would likely be used in areas with good roads like urban areas, whereas the Kurganets would be used in swampy or areas of deep snow or mud.
There are more big threats to the APCs/IFVs in the battlefield, and one of them is the under belly mines.
Against mines the best thing to do is to add bug and heavy armor-plate under the belly, or to use the Boomerang,
Keep in mind Boomerang isn't a BTR replacement... if there is a Boomerang IFV there then there will also be Boomerang tanks, command vehicles, APCs, artillery, etc etc... and the best way to deal with a minefield is TOS... or engineer vehicles with rollers and mine clearance systems on their front.
I guess the Boomerang as also extra armor at the belly. Add to that the “V” shape of the belly, and you might find that the Boomerang is much more protected then the Kurganets
A wheeled vehicle should have better mine resistance, but all the new vehicles will have mine resistant seats and other anti mine features.
Well there are several options. One option is the way I said it. Anther option is the way you said it. Anther option is that the vehicle with the 30mm turret is the APC, and the other one with the smaller turret that we don’t see the gun is maybe the IFV with the 57 mm gun, but the gun is not installed right now and maybe we will see it later. The small turret is because this turret penetrates the hall.
The new turrets are not ready... have you seen this poster?
Three turrets... three dates... 2010 Berezhok, 2015 Kurganets, 2020 Epocha.
All have 30mm cannon and all are likely to be APC turrets because they don't penetrate the hull.