Damian
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re: Tank Guns: Photo & Dicussion thread..
So thin gun can't be used on ~20 tons heavy platforms? Well it is less impressive than XM360 that can be used on such lightweight platforms, is a bit longer and have it's own dedicated MBT version XM360E1.Polish article about new german lightweight Rh 120LLR L/47 for light tanks, universal paltforms, tank destroyers, wheel tank destroyers, etc
The most important dates in english:
1. Rh 120LLR L/47 was developed for light tanks, universal paltforms, tank destroyers, wheel tank destroyers, etc
It has the same baistic like Rh120 L44, but use JCB interfejs for progrmed munitions (like DM11)
Its using material and technology originally developed for 140mm Rh guns.
Barrel life time is:
- 800-1400 for trening munitions (sabot/HEAT)
- 600 for DM63
- 200 for DM53
efficiency muzzle brake is between 44%(DM53) and 55%
the recoil is reduced from 650-700kN to only 250kN, and recoil impulse from 28-29kNs to 21kNs.
2. For combat platform with weight about <20t. Rheinmettal developed diffrent gun: Rh 105SB cal 105mm whit recoil only 180kN and recoil impulse 16 kNs. Ammo using in that 105mm gun can penetrate 560mm RHA for 2000m.
3. Rest dates is in the table - transating criteria in tabela for up to down:
Kaliber[mm] - Caliber
Długość lufy[mm] - barrel lenght
Masy [kg] - mass (weight):
- całkowita (tottal)
- lufy (barrel)
- zespołu zamka ( closing gun - I havent propoer word in english)
- zespołu odrzutowego (recoil system)
Objętość komory nabojowej [dm3] - (volume of the chamber for cartridges)
Prędkość początkowa pocisku [m/s] - (V exit)
Długość odrzutu [mm] - (recoil lenght)
Maksymlana siła odrzutu [kN] (recoil strenght)
Maksymlany impuls odrzutu [kNs] (recoil impulse)
Maksymlane ciśnienie gazów [MPa] (maximum gas pressure)