Unsure if it’s something someone has already posted about but figured this may help consolidate some knowledge around the CHARM 3 projectile.
According to “Challenger Service Inqiury, Castlemartin Incident”, Published by the British Government Defence Safety Authority, 14th of June, 2017 - The L29A1 (The Challenger 2’s CHARM3 training round) has a total penetrator length of 660 mm
The L29A1 projectile simulates the CHARM 3 projectile but has a different tail design to increase its drag and reduce range as seen below:
The differences between L29A1 and L27A1 is only this tail fin design, so we can pretty safely say the length of L29A1 and L27A1 should be roughly the same, so as to correctly simulate the L27A1 round. Give or take 30mm ± due to the change in fin design that may alter the penetrator length.
I’m not able to find much in the way of weight and diameter (i’m aware there’s the 23mm diameter number but I can’t source it). Anyone else have anything to add to this? I have a sneaking suspicion that by Gaijin using the Lanz Odermatt formula, we’re getting some very rough projections for penetration that don’t represent the actual capability of CHARM 3…
Yes, but the formula provides a very rough estimate for long rod penetration capabilities which may not be representative of the actual round’s capability
Sort of rough length comparison: L29 with the tail plug, on the table along with an L28A1 (L27 tungsten surrogate) without the tail plug, and L23 (I think) between them
So seems like they’re roughly the same in length, but L27 is far thicker?
Accounting for that missing tail plug, i’d say L27 and L29 are very closely matched in length, give or take 30mm of error.
Looks like L27 is far thicker and its tip is far less of a taper.
Don’t think they’re much thicker. It’s just the way the taper/ogive makes them look
This is L27 next to L29
Again, basically the same length as L29 and what we know about L28 compared to L27 and what we can see in that photo I posted before: the fin/tracer section extends right to the base of the tail plug
Vietnam? From what I recall the dual-mode capability was an urgent operational requirement to add man-in-the-loop capability to lower the risk of collateral damage in Afghanistan.
One thing that I find very weird is that in game it has the same weight as L26, despite it being a presumably longer penetrator. Do you think Gaijin have got the dimensions wrong?
Both weights a dimensions are likely wrong in game. It seems like L26 is a 505x25.64, at 4.85kg at 1500/1600m/s.
L27 is probably closer to 625-640mm rather than the 600 it is in game. But is likely not 1650m/s.
