When is one expected to catch a fast ball @ 200m? If that is the case, one would imagine, "you got bigger problems" and detection is only one..
Indeed there are more problems like how do you align the launcher on target in time, or if you use a maneuvering missile like QK then how could it reach it in time to intercept at least a few meters from the tank.
That is why, for example, Iron Fist was originally downsized to only 2 tubes per launcher.
Also my intention was an APFSDS round detected at 200m range. The intercept occurs at close range of several meters.
The rod's short flight time means very little time is left to respond.
An QK like missile from vertical launch boxes, installed indiscernibly, could allow a missile to first engage the threatening rd and then a follow on missile would engage the firing vehicle
It would not. The QK missile is an interceptor only. It certainly does not have a range of several kilometers, let alone the capability to detect and home in on a target there, and finally defeat it. Especially if it's a vehicle.
The typical mechanism for an APS is "slew to cue", meaning the crew is alerted and have the option to have a computer automatically rotate and align the gun on target. It may also alert via BMS that a target was detected there, allowing others to see it as well.
The slew to cue capability was reportedly used in combat extensively.
One could argue that the best way to defeat the HEAT jet is a reactive or EM armor not something as active as Trophy.
Even an APS-equipped vehicle must have sufficient armor as if it has no APS.
Combat experience shows that APFSDS is far too rare, while HEAT is all too common.
Next in line and still way ahead of APFSDS are IEDs and mines, as well as top-hitting EFPs.
So HEAT is most deserving of an APS-based solution. If an APFSDS requires serious compromises in APS design, then it's not worthwhile until it becomes a threat.
Glade to learn from you that APFSDS defeat is a much more limited threat and usually only faced when one is already protected w/ thick passive armor. .
Not always when equipped with proper armor, but yes it's limited and is only mentally inflated by video games like war thunder and such which make us believe tanks usually go up against tanks, when in reality they very rarely ever do, since multi-domain warfare became a thing.
would only postulate that given the speed of APFSDS that a rugged rocket propelled net could well defect a straight hit, rather a full high energy explosive.
Have you seen an APFSDS impacting a target? Good simulations out there.
There are 2 methods I know of for defeating an APFSDS.
First is Iron Fist's fragment-free blast that pushes the front or rear end of the rod so it would tilt, as seen in the old IMI video I posted a few comments above.
Second is a fragment blast that sends dense and high speed fragments into the rod. The most effective way is lateral, not face on impact.
The best case scenario is some 50% reduction for fragment method.
View: https://youtu.be/6hhSMryZaQY?si=JnzJx60otSfWrB2c
The above is all good, but if not AFSDS & only slower HEAT, then is something as heavy & complex as Trophy the real long term solution rather more passive schemes or even reactive "curtain" solutions.
Trophy is neither heavy nor complex. It is one of the simplest APS on the market, and on the lighter end of things. More passive APS types like Iron Curtain or StrikeShield quickly become heavier as you add more munitions to cover the vehicle.
Trophy uses a conventional set of sensors - 4 Radars + 4 EO, a computer set, 2 fast rotating launchers, an ammo box for 3 munitions per side, a loading arm and an actuated armored cover per launcher.
StrikeShield on KF41 for example uses a conventional set of sensors - 15 Radars + 35 EO, and 33 rotating launchers (to set blast directionality) with 33 munitions.
Source for numbers:
Serial production of Rheinmetall's StrikeShield active protection system (APS) for Hungarian Lynx infantry fighting vehicles (IFVs) will begin in the first quarter of...
www.janes.com
So StrikeShield is more complex and expensive, more difficult to restock because it has at least 5 different module shapes so you need a truck to bring you all 5 types. Even if they were to downsize it to 1 type it's still a lot of components and a logistician's nightmare.
There have been about as many "passive" APS as there are launcher-based ones. None entered service. Hungary may become the first user, but it'll only be final when it actually enters service.
The only passive APS I know that's not bulky is the Zaslon, but to do that it intentionally uses a large fragmentation grenade that's probably very dangerous due to its circular spread pattern.