Beer

Supercavitating small arms ammo.
 
" Classified as Multi Environment Ammunition – MEA – this projectile is effective against submerged targets and targets in the air. Depending on the weapon and the used loading variant, this ammunition is suitable for use in partial or fully submerged weapons, regardless of if the target is in water or on the surface. Due to the unconventional shape and significant mass, this round offers great armor-piercing capability against Multi-Layer Structures. This shape is also very effective against targets with fiber structure or mud, even when covered by sand. This projectile may be offered in two loading variants, A2 and X2, where both enable swimming capabilities. A2 load is the most powerful when engaging targets in air or water, but can only be shot from the air. Suitable for patrol boats, machine guns, coastal guards, and dedicated marksmen that would engage Multi-environment threats. X2 load is designed for combat swimmers and SOF personnel who operates submerged. "
 
https://www.armyrecognition.com/weapons_defence_industry_military_technology_uk/dsg_technology_unveils_cav-x_supercavitating_ammunition_for_submerged_special_operation_forces.html
 

 
 

 

 
 

People are conflating requirements -  parameters a system being procured has to meet - and conditions - parameters that respondents to the procurement have to comply with in order to participate. 
 
It doesn’t matter whether a system, in this case, KF41, meets the requirements stipulated by the customer, if the respondent (i.e. Rheinmetall) cannot meet the conditions of the RFP, in this case, delivery of an example system by a specified timeframe. 
 
A respondent has to meet the requirements while complying with the conditions. 

I've found some interesting issue
 
People from Polish Institute of Organic Industry (IPO) have shown how important is front plate in protection against shaped charges. The liner loses the most of its energy in first 30% to 35% of its route in the armor. 
 

 
And because of that the best is when the front plate is made of material which has the best protection against shaped charges and is as thick as it's possible.
In this case there were two arrays of metal (Ti-Al) composite tested. Both of them had the same weight but one version (V1) had thick (10mm) titanium layer on the face. The second one (V2) had this layer on the rear.
 
The research has shown that V1 has better mass (Em = 2.04) and thickness efficiency (Ev = 1.55) than V2 (Em = 1.4; Ev = 1.15) against shaped charges.
Composites alone had:
- V1 - Em = 4.26, Ev = 2.14
- V2 - Em = 2.84, Ev = 1.43
 

 
Source: https://www.docdroid.net/YBkruhn/6wilk-badania-skutecznosci-obronnej.pdf

Stolen from otvaga

 
 

Few more pics of GJ-11

 
 
   Note size of GJ-2 and GJ-11

New PLA assault rifle and SMG

 
 
   Just cool photo

Comanche Mk 2.
 

maybe german speaking members can help with this ?:)

I don't know the proper English translations for some of the more technical German terms - but basically it is about the performance of the T-54 and "the Patton" on two different tracks which are simulating off-road travel ("Wellenstrecke" is a track with uneven ground - i.e. (concrete) elements creating a wave pattern, while "Schwellenstrecke" is similar, but the elements are shaped a bit differently).
 
The table lists speed, the amplitude (vertical movement of the tank), increase in amplitude compared to the normal value on even ground (aka ca. 100 mm according to the text above the first table), measured frequency (how often does the tank "shake" up and down) and some technical/mathematical value representing the behaviour. The last column in the tables lists the condition/state of health (i.e. the crew comfort) of the crew - this is polled by asking the crew (left section of the column in the first table) and by comparing it with data from a graph (right section of the column in the first table).
As the results of polling the crews and looking at the graph were identical in the second and third table, there is only one section.
 
The condition/state of health has four different values (maybe more are possible):
eträglich (endurable - no effect on the crew's health on the long term) leichtes Unbehagen (slight discomfort) Unbehagen (discomfort) schweres Unbehagen (serious discomfort) I.e. the tables just say: The T-54 driving over the "Schwellenstrecke" type test track will create discomfort for the crew at speeds of 5, 10, 15 and 20 km/h. Due to the shape of the uneven ground, the situation is worse at low speeds, where the tank will move by up to 125 mm as part of the "shaking". When the tank drives fast, the effect decreases, as the tank will not "fall" as deep into the grooves inbetween the bumps of the ground. Still it always will result in discomfort, which means that crews cannot operate as effectively when spending a longer time driving under such conditions.
 
The second table  shows that the performance on the "Wellenstrecke" is a bit better when driving just 5, 10 or 15 km/h (endurable or only slight discomfort), but the situation gets worse when driving faster, as the tank "shakes" more. According to the third table, "the Patton" tank performs comparable to the T-54 at speeds of 10, 15 and 20 km/h, but is worse than the T-54 at 30 km/h - while the amplitude is still slightly lower, it "shakes" at a higher frequency. This can create "serious discomfort". Basically the T-54 has a shitty supsension, but "the Patton" has an even more shitty suspension.
 
In attachments I and F are photos shot during night (although it might be a typo and supposed to say "Nahaufnahmen" - photos made from a close range) showing the movement behaviour of both tanks.

Something more from Anna news.
 
2S1 on ZIL-131 "cabrio"

 
2A20 (?) on Ural 4320

 
 

Just 54 Chinese hellicopters in one photo...  

On otvaga people semi-identified equipment as commercial grade.  Body armor and helmets are not from us, carrier is some kind of Chinese-made thing.

In 1945 a five years old tank was hopelessly obsolete. Today a tank from 1980' being around 35 years old is still good enough for 95% of tank use and a tank from 1950' is still ok for at least half of the tank work happening around the globe. Funilly enough even T-34-85 considered obsolete by USSR in 1945 is still in limited use till today... just saying. 

A beautiful sight:
A Slovenian pilot flies his Zlin Z-526 underneath the longest stone arch railroad bridge in the world- Solkan, Slovenia.
In honor of the 110th aniversary of the first flight of our aviation pioneer Edvard Rusjan.

In 1945 a five years old tank was hopelessly obsolete. Today a tank from 1980' being around 35 years old is still good enough for 95% of tank use and a tank from 1950' is still ok for at least half of the tank work happening around the globe. Funilly enough even T-34-85 considered obsolete by USSR in 1945 is still in limited use till today... just saying. 

Parachute drop malfunction BMP2  BMD2
 


 

 

From NATO days in Ostrava - Reigning RedBull Air Race Champion and an ex-Grippen pilot Martin Šonka and air force Grippen pilot Ivo Kardaš in their special display. 

 
This photo and more are from this link.
 
More than 200 thousand people came to visit the show. A particularly interesting thing is that the US C-5M brought there the AZ-1Z and UH-1Y which Czech MOD recently ordered and the public could see them for the first time. Army representatives recently confirmed that they count with buying more of these hellicopters in the future (the first order contains 8 UH-1Y and 4 AH-1Z). Also a first service center for them outside US is to be established in Prague by Czech state-owned LOM company.

"Russia.jpg":

 
 

Technically AFAIK yes, but not sure if they do it. 
 
   Tunguska during exercises (part of Center-2019)

Huge number of TOS-1As doing salvo during "Center-2019".
 
   UR-77 at work
 

Turret looks nice, hull is meh...

i was at Teknofest Istanbul 2019
feel free to share them 
but plz don´t share them on Tanknet,keypublishing forum  and PDF
 
https://photos.app.goo.gl/X9shvAcTjnexkr7x8